Easy One-Pan Oven Baked Chicken Fajitas: Your Flavorful Weeknight Meal Solution
Are you searching for a delicious, healthy, and incredibly easy dinner that the whole family will love? Look no further than these **one-dish oven baked chicken fajitas**! This recipe delivers all the vibrant, zesty flavors of your favorite Tex-Mex dish with minimal effort and cleanup. Simply toss your ingredients on a baking sheet, let the oven do the work, and in less than an hour, you’ll have perfectly cooked chicken and tender-crisp veggies bursting with authentic southwest flair.

Mexican-inspired meals are a staple in our household, and these oven baked fajitas consistently rank among our top choices. Their simplicity and incredible versatility make them a dream for busy weeknights. Whether you’re craving classic fajitas wrapped in tortillas, a fresh chicken fajita salad, or a hearty burrito bowl, this recipe adapts perfectly. Don’t forget to elevate your meal with some easy homemade guacamole or a drizzle of bright cilantro lime dressing for an extra burst of flavor!
Why You’ll Love This Easy Oven Baked Fajita Recipe: Key Features
This oven baked fajita recipe isn’t just tasty; it’s designed to make your life in the kitchen simpler and more enjoyable. Here are a few standout features that make it a go-to:
- Effortless One-Dish Cooking: Just like our popular maple salmon sheet pan meal and chicken cauliflower soup, all your ingredients cook together in a single baking dish. This means less time spent on prep and even less time on cleanup, making it the ultimate hassle-free weeknight dinner.
- Excellent for Meal Prep: Planning your meals ahead has never been easier! You can prep this fajita bake up to two days in advance, having all your ingredients ready to go. Or, cook a big batch and store it in the fridge to enjoy as quick, delicious meals throughout the week. It’s perfect for healthy lunches or dinners, just like our ground chicken stir-fry or healthy fried rice recipe.
- Incredibly Versatile: This isn’t just a fajita recipe; it’s a foundation for countless meals! Transform your flavorful chicken and veggies into satisfying homemade burrito bowls, vibrant chicken fajita salads, or serve them traditionally with warm tortillas for classic fajitas. The possibilities are endless, ensuring you never get bored.
- Naturally Gluten-Free & Healthy: Made with fresh chicken and an abundance of colorful bell peppers and onions, this recipe is inherently wholesome and naturally gluten-free. It’s a clean eating option that doesn’t compromise on flavor or satisfaction.
Essential Ingredients for Flavorful Oven Fajitas
Gathering your ingredients is the first step to creating these incredible oven baked fajitas. The beauty of this recipe lies in its simple, fresh components that come together to create a symphony of flavor. Here’s what you’ll need:

Ingredient Spotlight and Smart Substitutions
Let’s dive a little deeper into the key ingredients and some tips for making the best choices for your fajitas:
- Chicken Breasts: For this specific oven baked fajita recipe, we highly recommend using 1.5 to 2 pounds of boneless, skinless chicken breasts. While chicken thighs are delicious, chicken breasts tend to cook more evenly and shred beautifully, which is ideal for this preparation method.
- Clean Food Tip: Whenever possible, opt for organic chicken. Organic certification means the chickens are fed organic feed and are raised without antibiotics, which can be a healthier choice. If organic options are not available or fit your budget, conventional chicken will still yield a delicious meal! For those interested in animal welfare, look for certifications like “Animal Welfare Approved,” “Certified Humane,” or “Global Animal Partnership.” These labels indicate stricter standards for the chickens’ living conditions, promoting more ethical farming practices.
- Sweet Bell Peppers: The more colors, the merrier! Use a vibrant combination of red, yellow, and orange bell peppers. These not only add beautiful color to your dish but also a slightly different sweetness and flavor profile. If your peppers are on the smaller side, consider using 5 instead of 4 to ensure a generous vegetable-to-chicken ratio.
- Onion: A large yellow onion is our preferred choice for its balanced sweetness and pungency when roasted. However, a sweet onion would also be excellent, or for a sharper flavor and pop of color, a red onion would work wonderfully.
- Seasoning Mix: The heart of any great fajita lies in its seasoning! We enthusiastically recommend using our homemade taco seasoning recipe. It’s incredibly easy to whip up from scratch, allowing you to control the spice levels and avoid unwanted additives. If you opt for convenience, two packets of store-bought fajita or taco seasoning will work perfectly. Be sure to check the ingredients of pre-made mixes for added sugar or preservatives if you’re aiming for a cleaner meal.
- Tapioca Starch: This is our secret ingredient for a perfectly saucy fajita! Tapioca starch helps to thicken the juices released by the peppers and chicken during baking, creating a luscious sauce that coats everything beautifully without being gummy. You can easily substitute it with arrowroot powder or cornstarch if tapioca isn’t on hand. If you’re using store-bought seasoning packets, you may find that they already contain a thickener, so you can often omit the additional starch in that case.
Step-by-Step Instructions for Your One-Dish Fajita Bake
Making these oven baked fajitas is incredibly straightforward. Just follow these simple steps to get a flavorful meal on your table with minimal fuss:
- Step 1: Prep the Pan. Begin by preheating your oven to 400°F (200°C). In a 9×13 inch baking dish, arrange your thinly sliced bell peppers and onions. Gently push the vegetables towards the sides of the dish, creating a space in the center. Lay the chicken breasts flat on the bottom of the dish in this cleared area. A little overlap with the veggies is perfectly fine. Drizzle the chicken, peppers, and onions generously with 2 tablespoons of extra-virgin olive oil. This helps the seasoning adhere and promotes even cooking and browning.

- Step 2: Season and Bake. In a small bowl, whisk together your homemade seasoning mix and the tapioca starch (if using homemade seasoning). If you’re using store-bought packets, simply open them! Evenly sprinkle this flavorful seasoning blend over the chicken breasts, bell peppers, and onions. Once everything is seasoned, place the baking dish into your preheated oven and bake for 25-30 minutes. Halfway through the cooking time (around the 12-15 minute mark), give the peppers and onions a good stir to ensure they cook evenly and become tender-crisp. The chicken is cooked when its internal temperature reaches 165°F (74°C). Cooking times may vary based on the thickness of your chicken breasts.
Pro Tip: While your fajitas are baking, use this time efficiently to prepare any toppings you plan to serve, such as chopping cilantro, mashing guacamole, or warming tortillas. This ensures everything is ready to go as soon as the fajitas come out of the oven!

- Step 3: Shred and Combine. Once the chicken is thoroughly cooked (reaching 165°F internal temperature), carefully remove it from the baking dish. Using two forks, shred the chicken breasts into bite-sized pieces. Return the shredded chicken back to the baking dish and toss it thoroughly with the cooked bell peppers and onions. This allows the chicken to absorb all the wonderful juices and flavors from the vegetables and seasoning.
And just like that, your easy one-dish oven baked fajitas are ready to be enjoyed! Get ready for a burst of delicious southwest flavor in every bite.

My Favorite Ways to Enjoy This Versatile Fajita Bake
The beauty of these oven baked fajitas is how easily they can be customized to suit any preference or dietary need. While my absolute favorite way to enjoy them is in fresh chicken fajita salads or hearty burrito bowls, the possibilities are truly endless. Here are some of our top suggestions for serving and toppings to make your fajita experience unforgettable:
- Classic Fajitas: Warm up some corn or flour tortillas and load them up with the chicken and veggie mixture. Add a squeeze of fresh lime juice and your favorite toppings.
- Chicken Fajita Salads: Serve the fajita mixture over a bed of crisp mixed greens. This is a light, refreshing, and incredibly flavorful meal.
- Burrito Bowls: Create a satisfying bowl by layering the fajita mix over brown rice or cauliflower rice. Add an array of toppings for a complete meal.
- Suggested Sides & Toppings:
- Brown rice or cauliflower rice (for burrito bowls)
- Easy homemade guacamole or sliced avocado
- Cilantro lime dressing (perfect for salads)
- Fresh pico de gallo or chunky salsa
- Hearty black beans or pinto beans
- Fresh mixed greens (for salads)
- Bright lime wedges (essential for adding a burst of freshness)
- Chopped fresh cilantro
- Shredded cheese and/or a dollop of sour cream or Greek yogurt (if dairy is part of your diet)
- Spicy pickled jalapeños or a dash of hot sauce for an extra kick!

Frequently Asked Questions (FAQs) About Oven Baked Fajitas
We’ve gathered some common questions to help you master this delicious recipe and enjoy it to the fullest.
Absolutely! While our homemade taco seasoning offers a fresh, customizable flavor, store-bought fajita or taco seasoning packets are a convenient alternative. If you opt for store-bought, we recommend using two packets to ensure a robust and well-seasoned dish, as they are typically portioned for smaller amounts of meat.
This recipe is fantastic for meal prepping! You have a couple of options:
- Prep Ahead: You can slice all your chicken, bell peppers, and onions, and mix your seasoning up to 48 hours in advance. Store the chicken and vegetables separately in airtight containers in the fridge until you’re ready to bake. This significantly cuts down on active cooking time on a busy day.
- Cook Ahead: For ultimate convenience, bake the entire dish ahead of time. Once cooled, store the cooked fajita mixture in an airtight container in the fridge for up to 3-4 days. It reheats beautifully in the microwave or a warm oven, making it perfect for grab-and-go meals throughout the week.
Yes, while chicken breasts are recommended for their texture in this recipe, you can certainly experiment with other proteins. Sliced chicken thighs work well, though they might require a few extra minutes of cooking. Sliced steak (like flank or skirt steak) would also be delicious, but consider searing it briefly on a stovetop before baking to achieve a better crust, or cut it into smaller pieces to ensure it cooks through in the same timeframe as the vegetables. For a vegetarian option, large portobello mushrooms or extra firm tofu, cut into strips, would make an excellent substitute, absorbing all those fantastic fajita flavors.
Expert Tips for Oven Baked Fajita Success
A few key tips will help ensure your oven baked fajitas turn out perfectly every time:
- Chicken Breast Size Matters: This recipe typically uses 1.5 pounds of chicken, which usually equates to 2-3 average-sized chicken breasts. Keep in mind that the total cooking time will vary depending on the thickness of your chicken. Thicker breasts will take longer to reach 165°F (74°C). If your chicken breasts are on the smaller side and cook faster than the peppers, you can temporarily remove them from the dish once cooked, shred them, and then add them back in once the peppers are tender. This prevents the chicken from drying out.
- Evenly Cooked Veggies: To ensure your bell peppers and onions cook uniformly and achieve that delicious tender-crisp texture, remember to give them a good stir halfway through the baking time. This helps expose all sides to the heat, preventing some from burning while others remain undercooked.
- Don’t Overcrowd the Pan: While this is a one-dish meal, it’s important not to overcrowd your baking dish. If there are too many ingredients, they will steam instead of roast, leading to softer, less flavorful vegetables. If you’re doubling the recipe or using a very large amount of chicken and veggies, consider using two baking dishes to allow everything to spread out and get nicely caramelized.
- Resting the Chicken: Although we shred the chicken immediately for this recipe, in general, allowing chicken to rest for 5-10 minutes after cooking helps the juices redistribute, resulting in more tender and flavorful meat. For this fajita recipe, shredding it right away allows it to mix with the flavorful pan juices, which is ideal.
- Adjust Spice Levels: If you’re using homemade seasoning, feel free to adjust the chili powder, cayenne pepper, or red pepper flakes to suit your preferred level of heat. For a milder dish, simply reduce or omit the spicier ingredients.
More Easy Recipes For You To Try
If you loved the simplicity and flavor of these oven baked fajitas, you’ll be thrilled with these other easy and healthy recipes from our kitchen:
- Juicy Air Fryer Turkey Burgers
- Easy Frozen Salmon in Air Fryer
- Healthy Cashew Chicken Salad with Apples (Dairy-Free)
- Air Fryer Teriyaki Chicken (gluten free)
If you make this recipe, please let me know what you think! I would so appreciate you leaving a star rating and/or comment below. And don’t forget to share a photo on Instagram or Facebook and mention @CleanPlateMama!
Eat Clean. Be Well!
-Sara

One-Dish Oven Baked Fajitas
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Ingredients
Ingredients for the Baked Chicken Fajitas
- 1.5 lbs. chicken breasts (up to 2lbs. chicken will work)
- 4 large sweet bell peppers, thinly sliced (any variation of red, yellow, and orange)
- 1 yellow onion, thinly sliced
- 2 tbsp extra-virgin olive oil
- 4 tbsp homemade taco seasoning
- 1 tbsp tapioca starch (see notes)
Suggested Ingredients to Go Along with Fajita Bake
- brown rice
- guacamole
- cilantro lime dressing
- pico de gallo
- mixed greens
- black or pinto beans
- cilantro
- lime wedges
Instructions
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Preheat oven to 400°F (200°C).
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Place the sliced bell peppers and sliced onion in a 9×13 inch baking dish. Gently push the peppers and onions to the edges of the pan as much as possible to make room for the chicken. Place chicken breasts flat on the bottom of the dish (it’s okay if some peppers are underneath the chicken).
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Drizzle the chicken and veggies with 2 tablespoons of olive oil. In a small bowl, mix the homemade seasoning blend and tapioca starch together. Then, evenly sprinkle this mixture over the chicken, peppers, and onions. (NOTE: if using store-bought seasoning packets, you typically do not need the extra tapioca starch – just sprinkle the seasoning directly on the chicken and veggies).
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Bake for about 25-30 minutes, or until the internal temperature of the thickest part of the chicken reaches 165°F (74°C). Halfway through baking time, stir the peppers and onions to ensure even cooking.
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After the chicken has cooked, remove the chicken breasts from the baking dish and shred them into bite-sized pieces using two forks. Return the shredded chicken back to the baking dish and thoroughly mix it with the cooked bell peppers and onions.
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Serve immediately with your favorite toppings and enjoy your flavorful one-dish fajitas!
Notes
- Bell Pepper Quantity: If your bell peppers are on the smaller side, we recommend using 5 peppers instead of 4 to ensure a good amount of vegetables in your fajita mix.
- Tapioca Starch’s Role: Tapioca starch is key to creating a delicious sauce for your fajitas. The bell peppers will release a fair amount of liquid as they cook, and the starch helps to thicken these juices, forming a flavorful base that coats the chicken and vegetables beautifully. You can substitute arrowroot powder or cornstarch in equal measure. However, if you’re using a store-bought seasoning packet, you might find that it already contains a thickening agent, allowing you to omit the extra starch altogether.
- Chicken Cooking Time: This recipe typically calls for about 1.5 lbs of chicken, which is usually 2-3 standard-sized chicken breasts. The cooking time will vary based on the thickness of your chicken. Always ensure the internal temperature reaches 165°F (74°C) for food safety. If you notice your chicken breasts are cooking faster than the peppers, you can temporarily remove them, shred, and then return them to the dish once the peppers are tender-crisp.
- Nutrition Information: The calculated nutrition information provided is specifically for the baked chicken, peppers, and onions as prepared in the recipe. It does not account for any additional toppings you choose to add (like rice, guacamole, cheese, or sour cream). The total nutritional values of your meal will therefore vary significantly depending on your selection of toppings.
Nutrition