Name: Chicken Fajita Bake Recipe
Prep time: 10 min
Cook time: 22 min
Total time: 32 min
Cuisine: Mexican
Ingredients: 1 lb boneless, skinless chicken breasts or thighs, sliced; 4 bell peppers, any color, sliced; 1/2 medium onion, sliced; 1/2 teaspoon chili powder; 1/4 teaspoon paprika; 1/4 teaspoon garlic powder; 1/4 teaspoon cumin; 1/4 teaspoon dried oregano; 1/2 teaspoon fine salt; 1/8 teaspoon black pepper; 1 Tablespoon avocado oil

There’s something so satisfying about a dinner that fills your kitchen with vibrant colors and mouthwatering aromas, all without a fuss. That’s exactly what you get with this Chicken Fajita Bake Recipe, a simple one-dish meal bursting with bold, authentic flavors that bring the spirit of fajitas right into your oven.

The dish is served on a white plate placed on a white marbled surface with a striped blue cloth nearby. The bottom layer is a bed of white cauliflower rice mixed with small green cilantro leaves. On top, there are grilled shrimp seasoned with black pepper, orange and red bell pepper strips, and slices of red onion, adding bright colors of orange, red, and purple. A generous dollop of light green guacamole with small red chili pieces rests on one side. A fresh green lime wedge is placed on the plate’s edge, adding a fresh touch. Some cilantro leaves and another lime wedge lie nearby on the surface. Photo taken with an iphone --ar 2:3 --v 7

Jump to:

Why You'll Love This Recipe
Ingredients & Why They Work
Make It Your Way
Step-by-Step: How I Make Chicken Fajita Bake Recipe
Top Tip
How to Serve Chicken Fajita Bake Recipe
Make Ahead and Storage
Frequently Asked Questions:
Final Thoughts
Chicken Fajita Bake Recipe

Why You'll Love This Recipe

I’ve always loved fajitas with their colorful veggies and smoky chicken, but making them usually meant juggling a skillet, prepping toppings, and dealing with a million pans. This Chicken Fajita Bake Recipe streamlines that process — everything cooks together on one sheet, making cleanup effortless and keeping prep stress-free.

One-pan convenience: Toss it all on a baking sheet, pop it in the oven, and dinner practically makes itself while you relax.
Vibrant, fresh flavors: Bright bell peppers and aromatic spices blend perfectly with tender chicken for an authentic fajita taste.
Flexible meal options: Serve it in lettuce wraps, over rice, or wrapped in tortillas — whatever suits your mood.
Healthy and satisfying: Packed with protein and veggies, it keeps you fueled without weighing you down.

Ingredients & Why They Work

Each ingredient in this Chicken Fajita Bake Recipe plays a part in balancing flavor and texture — from the juicy chicken and crunch of bell peppers to the warm, earthy spices that bring it all together. Here’s what I use and why:

Flat lay of a small pile of raw boneless, skinless chicken breasts sliced into strips, four vibrant bell peppers sliced into strips in red, yellow, green, and orange colors, a half medium white onion sliced thinly, small white ceramic bowls each containing a reddish chili powder, a warm paprika powder, a pale garlic powder, a light brown cumin powder, a sprinkle of dried oregano leaves, fine white salt crystals, and coarse black peppercorns, plus a small white bowl with golden avocado oil, all arranged symmetrically on a clean white marble surface, soft natural light, photo taken with an iPhone, professional food photography style, fresh ingredients, white ceramic bowls, no bottles, no duplicates, no utensils, no packaging --ar 2:3 --v 7 --p m7354615311229779997

Chicken breasts or thighs: I like thighs for juiciness but breasts keep it lean — either works great here.
Bell peppers: Use a mix of colors to brighten up the dish visually and add natural sweetness.
Onion: Adds just the right oniony bite that complements the other veggies.
Chili powder: The heart of fajita seasoning, offering mild heat and depth.
Paprika: Brings smoky notes without overpowering the dish.
Garlic powder: Adds that subtle savory kick we all crave.
Cumin: Gives it the warm, earthy undertone essential for Mexican-inspired cooking.
Oregano: Just a pinch to brighten the flavor profile.
Salt and black pepper: To enhance and balance all those tasty ingredients.
Avocado oil: Perfect for roasting because it has a high smoke point and a mild flavor.

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Note: You'll find the complete list of ingredients, along with their exact measurements, in the printable recipe card at the bottom of this post.

Make It Your Way

This recipe really shines with simple ingredients, but I love making it my own by switching up the add-ons or spices. You can easily tailor it to what you have in your kitchen or your personal cravings.

Variation: I sometimes add sliced mushrooms or zucchini for extra veggies, which give the bake a nice earthy boost and even more color.
Spice level: Feeling adventurous? Toss in a sprinkle of cayenne or some diced jalapeños to up the heat.
Protein swaps: This works beautifully with turkey or even firm tofu if you want a vegetarian twist.
Cheesy finish: For those cheese lovers, sprinkle some shredded cheddar or pepper jack on top during the last five minutes of baking.

Step-by-Step: How I Make Chicken Fajita Bake Recipe

A metal tray filled with several layers of food: the bottom layer has slightly glossy sliced red bell peppers and orange bell peppers, cut into long strips, mixed with thinly sliced red onions showing purple and white tones; the next layer shows raw, pale pink pieces of chicken scattered evenly on top, sprinkled with black pepper. On the left side of the tray, a bunch of fresh green cilantro with leaves is partially on a white marbled surface alongside three lime wedges in bright green and yellow shades. A crumpled blue and white striped cloth lies beneath the tray on the white marbled surface. Photo taken with an iphone --ar 2:3 --v 7

Step 1: Prep your veggies and chicken

I start by slicing up the chicken into bite-sized strips — this helps them cook evenly and soak up all the flavors. Then, I chop the bell peppers into similarly sized slices and thinly slice half an onion. Uniformity here helps everything roast harmoniously so you don’t end up with undercooked bits or soggy veggies.

Step 2: Season and combine

Next, I toss the chicken, peppers, onions, and all the spices — chili powder, paprika, garlic powder, cumin, oregano, salt, and pepper — into a large bowl or directly on the parchment-lined baking sheet with the avocado oil. Make sure everything is evenly coated; this step is key for that layered fajita flavor.

Step 3: Bake and savor

Pop the sheet into your preheated oven at 375°F and bake for about 20–22 minutes. You’re looking for the chicken to be cooked through and the peppers to be tender but still have a bit of crunch. If you want a touch more char or caramelization, broil for an additional 1-2 minutes while keeping a close eye so nothing burns.

Top Tip

Through many experiments in my kitchen, I found a few small tweaks make all the difference for this Chicken Fajita Bake Recipe. These tips will help you get that perfect balance of flavor and texture every time.

Even Slicing: Cutting your chicken and veggies into uniform pieces ensures they cook evenly, avoiding dry chicken or underdone peppers.
Don’t Skip the Oil: Tossing everything in avocado oil helps the spices cling and the roasting process develop those beautiful caramelized edges.
Watch the Oven: Ovens vary—start checking for doneness around 18 minutes to avoid overcooked chicken.
Rest Before Serving: Let the bake sit a few minutes after coming out of the oven to let juices redistribute and flavors meld.

How to Serve Chicken Fajita Bake Recipe

chicken fajita bake - Serving Suggestion

Garnishes

I like topping mine with fresh cilantro, a squeeze of lime juice, and a dollop of Greek yogurt or sour cream — it brightens and cools that smoky spice perfectly. For some extra texture and color, diced avocado or crumbled queso fresco make the dish feel special and fresh.

Side Dishes

One of my favorite ways to enjoy this chicken fajita bake is over fluffy cauliflower rice or a baked sweet potato — both absorb those delicious juices. If you want a more traditional feel, wrap it up in warm corn or flour tortillas with your favorite salsa and some shredded lettuce.

Creative Ways to Present

For a festive dinner, I’ve lined baking dishes with large lettuce leaves, then spooned the bake inside individually, making them a perfect low-carb finger food. They’re always a hit at casual gatherings or game nights. You can also serve it family-style in a cast-iron skillet for a rustic, cozy vibe.

Make Ahead and Storage

Storing Leftovers

Once cooled, I store leftovers in an airtight container in the fridge. The flavors actually deepen overnight, making for even tastier next-day meals. It usually stays good for up to 3 days, which comes in handy for quick lunches.

Freezing

This bake freezes surprisingly well — I portion it out into freezer-safe containers and freeze up to 2 months. When I’m ready to enjoy, thaw overnight in the fridge for best results and reheat gently.

Reheating

I find reheating in a skillet on medium heat keeps the chicken juicy and the veggies crisp, but the microwave works fine too if you're short on time. Add a splash of water or broth to keep things moist while warming.

Frequently Asked Questions:

Can I make this Chicken Fajita Bake Recipe gluten-free?

Absolutely! This recipe is naturally gluten-free as long as you avoid serving it with flour tortillas. Use corn tortillas or lettuce wraps instead to keep things gluten-free.

What’s the best way to keep the chicken tender?

Slicing the chicken into even pieces ensures it cooks quickly and evenly, which helps it stay juicy. Avoid overcooking by checking the chicken around 20 minutes – it should be opaque with internal temperature hitting 165°F.

Can I use frozen bell peppers for this recipe?

While fresh bell peppers give the best texture and flavor, you can use frozen. Just be aware that frozen peppers might release a bit more moisture and become softer. Pat them dry before mixing to reduce sogginess.

How spicy is this Chicken Fajita Bake Recipe?

This recipe is mildly spiced to please most palates but you can easily adjust heat by adding cayenne pepper, diced jalapeños, or hot sauce before baking.

Final Thoughts

This Chicken Fajita Bake Recipe has become my go-to for busy nights because it’s fast, flavorful, and just downright comforting. Whether you’re new to fajitas or an aficionado looking for an easier dinner, this simple sheet pan approach delivers all the flavor without the mess and stress. Give it a whirl and I promise it’ll become a fast favorite in your house too.