If you’re looking for an easy, delicious, and satisfying meal that requires minimal effort, this Cheesy Baked Fajita Chicken is going to be your new weeknight favorite. It has everything you love about classic fajitas—juicy, seasoned chicken, tender peppers and onions, and plenty of melted cheese—all baked together in one dish.

What makes this recipe so great? First, it’s incredibly simple. You just season the chicken, toss in the veggies, bake, and finish with cheese. Second, it’s super versatile. You can serve it over rice, wrap it in a tortilla, or even enjoy it on its own with a side salad. Plus, the cleanup is a breeze since everything bakes in one pan.

Let’s get started!

Step 1: Preheat the Oven

Before anything else, preheat your oven to 375°F (190°C). This ensures even cooking and helps the chicken stay juicy. To make cleanup easier, lightly grease a 9×13-inch baking dish with cooking spray or a drizzle of olive oil. If you prefer, you can also line the dish with parchment paper.

Step 2: Season the Chicken

Now, take your four boneless, skinless chicken breasts and place them directly in the prepared baking dish. Drizzle two tablespoons of olive oil over the chicken. Then, grab your packet of fajita seasoning and sprinkle it evenly over each piece. Make sure to coat both sides so you get maximum flavor in every bite. You can use store-bought seasoning for convenience or make your own blend with chili powder, cumin, garlic powder, paprika, and a pinch of cayenne.

Step 3: Prep the Veggies

No fajita dish is complete without peppers and onions. Slice one red bell pepper, one green bell pepper, and one onion into thin strips. In a medium bowl, toss the veggies with a small drizzle of olive oil. If you want even more bold seasoning, sprinkle in a little extra fajita seasoning and mix well. Then, arrange the sliced peppers and onions around and on top of the chicken in the baking dish.

At this point, your kitchen is already smelling incredible, but the real magic happens in the oven. Stay tuned for the next steps as we move on to baking, adding the cheese, and finishing this dish with the perfect garnishes!

Step 4: Bake Until Juicy and Tender

Now that your chicken and veggies are prepped, it’s time to let the oven do the work. Cover your baking dish tightly with aluminum foil—this helps trap in moisture, ensuring the chicken stays tender and juicy while the peppers and onions soften perfectly.

Place the dish in your preheated oven at 375°F (190°C) and bake for 25–30 minutes. You’ll know it’s ready when the chicken reaches an internal temperature of 165°F (74°C). If you don’t have a meat thermometer, you can cut into one of the chicken breasts to check that the juices run clear and there’s no pink in the center.

Step 5: Add the Cheese and Bake Again

Once the chicken is fully cooked, it’s time for the best part—cheese! Remove the foil and generously sprinkle one cup of shredded Mexican cheese blend evenly over the chicken and veggies. If you love extra cheese, feel free to add a little more.

Place the dish back in the oven, uncovered, and bake for another 5–7 minutes, or until the cheese is completely melted and bubbly. The slight crispiness on the edges of the cheese adds a delicious texture that makes this dish irresistible.

Step 6: Let It Rest and Add the Finishing Touches

After removing the dish from the oven, let it rest for about 5 minutes. This helps the juices redistribute within the chicken, keeping every bite moist and flavorful.

For the final touch, squeeze the juice of one fresh lime over the dish. The citrusy brightness cuts through the richness of the cheese and enhances all those bold fajita flavors. Then, sprinkle on freshly chopped cilantro for a pop of color and freshness.

At this point, your kitchen smells absolutely incredible, and your cheesy baked fajita chicken is ready to serve. Whether you scoop it onto a plate as-is, stuff it into warm tortillas, or pair it with rice, this dish is guaranteed to be a hit.