Cheesy Chicken Fajita Casserole with Rice and Peppers Tips, FAQ & printable recipe

Tips for success

To take the flavor of this casserole to the next level, consider charring the bell peppers slightly in a dry, hot cast-iron skillet before adding the chicken. This mimics the smoky, blistered character of restaurant-style fajitas and adds an incredible depth of flavor to the finished bake.

Additionally, always let the casserole rest for about five to ten minutes after removing it from the oven; this brief cooling period allows the melted cheese and juices to set slightly, making it much easier to scoop and serve clean, beautiful portions.

If you want to add a bit of extra texture and color, stir in some sweet corn kernels along with the rice and bell peppers. This not only stretches the meal to feed a larger crowd but also adds a wonderful sweetness and bite that complements the savory chicken and spices.

For an extra touch of freshness, garnish the top of the baked casserole with freshly chopped cilantro, sliced green onions, or a squeeze of fresh lime juice right before serving.

Variations

• Spicy Pepper Jack: Swap the Monterey Jack cheese for pepper jack cheese and add a pinch of cayenne pepper to the fajita seasoning for an extra kick of heat.
• Rice Alternatives: Use cooked brown rice or cauliflower rice instead of white rice to vary the texture and flavor of the casserole base.

Storage and make-ahead

Fridge

Store leftovers in an airtight container in the refrigerator for up to 3 to 4 days.

Freezer

Freeze in a freezer-safe container for up to 2 to 3 months; thaw overnight in the fridge before reheating.

Reheat

Reheat individual portions in the microwave, or bake the covered dish at 350°F (175°C) until heated through.

Any leftover casserole should be cooled completely at room temperature for no more than two hours before being stored. Transfer the leftovers to an airtight container, or cover the baking dish tightly with a layer of plastic wrap or aluminum foil, and place it in the refrigerator.

Properly stored, this dish will remain fresh, delicious, and safe to eat for up to three to four days, making it a fantastic option for quick weekday lunches or hassle-free reheated dinners.

This casserole is an outstanding candidate for meal prep and can be fully assembled up to twenty-four hours in advance. Simply follow all the steps up to the baking point, wrap the baking dish tightly with plastic wrap, and store it in the refrigerator.

When you are ready to serve, remove the plastic wrap, cover the dish with foil, and bake at 375°F (190°C) for twenty-five minutes, then uncover and bake for another ten minutes until the cheese is melted and bubbling.

Serving ideas

Serve this warm, comforting casserole alongside a variety of classic Tex-Mex toppings so everyone can customize their own plate. A bowl of cool, creamy guacamole or sliced ripe avocados adds a rich, buttery contrast to the spiced chicken and rice. A dollop of Mexican crema, a spoonful of fresh pico de gallo, or a splash of your favorite hot sauce can also elevate the flavors and add a pleasant contrast of temperatures and textures to each bite.

To round out the meal, pair the casserole with a simple, crisp green salad tossed in a zesty lime vinaigrette, or serve it alongside warm flour or corn tortillas for wrapping up the cheesy filling. Warm tortilla chips are also an excellent accompaniment, allowing you to scoop up the creamy rice, chicken, and melted cheese directly from the plate. It is a hearty, self-contained meal that easily feeds a hungry family on busy weeknights.

Frequently asked questions

Recipe card

Cheesy Chicken Fajita Casserole with Rice and Peppers

Prep 15 minCook 25 minRest 5 minTotal 45 minServes 6

Ingredients

• 1 1/2 lb boneless skinless chicken breasts, cut into bite-sized chunks
• 2 tbsp fajita seasoning
• 1 cup red bell pepper, diced
• 1 cup green bell pepper, diced
• 3 cups cooked long-grain white rice
• 1 cup cheddar cheese, shredded
• 1 cup Monterey Jack cheese, shredded

Instructions

1. Heat a large skillet over medium-high heat. Add the chicken breast chunks and sprinkle the fajita seasoning evenly over the top. Cook, stirring occasionally, for 5 to 6 minutes until the chicken starts to brown on all sides.
2. Stir the diced red bell pepper and green bell pepper into the skillet with the chicken. Continue to sauté for 4 to 5 minutes until the peppers are tender-crisp and the chicken is fully cooked, reaching an internal temperature of 165°F (74°C).
3. In a large mixing bowl, combine the cooked long-grain white rice and half of the shredded cheddar cheese and Monterey Jack cheese. Stir well until the mixture is fully combined.
4. Gently fold the sautéed chicken and bell pepper mixture into the rice and cheese mixture until evenly distributed. Transfer the entire mixture into a 9x13-inch baking dish, spreading it into an even layer with a spatula.
5. Sprinkle the remaining shredded cheddar cheese and Monterey Jack cheese evenly over the top of the assembled casserole, covering the rice and chicken mixture completely.
6. Bake in the preheated oven at 375°F (190°C) for 15 to 20 minutes. The casserole is done when the cheese is completely melted and golden brown, and the juices are bubbling vigorously around the edges of the baking dish.

Contains: milk

Estimated nutrition per serving

Calories

370

Protein

34.7 g

Carbohydrates

26.2 g

Fat

13 g

Fiber

1.2 g

Sugar

1.5 g

Sodium

620 mg

Automatic estimate from the ingredient list, not laboratory-verified.