Chicken Fajita Rice Casserole

Chicken Fajita Rice Casserole is a hearty, all-in-one meal packed with seasoned chicken, bell peppers, onions, rice, and melted cheese. Inspired by the bold flavors of classic fajitas, this casserole is baked to perfection and makes a fantastic weeknight dinner or meal prep option.

Why You’ll Love This Recipe

This casserole delivers all the sizzling flavor of chicken fajitas in an easy, family-friendly baked dish. It’s loaded with protein, vegetables, and carbs—everything you need in one pan. Plus, it’s highly customizable, simple to make, and great for feeding a crowd or storing as leftovers.

ingredients

(Tip: You’ll find the full list of ingredients and measurements in the recipe card below.)

• Cooked chicken breast or thighs, shredded or chopped
• Cooked rice (white, brown, or Spanish rice)
• Bell peppers (red, yellow, green), sliced
• Yellow onion, sliced
• Olive oil
• Garlic, minced
• Taco or fajita seasoning
• Diced tomatoes (canned, drained)
• Shredded cheddar or Mexican blend cheese
• Sour cream or plain Greek yogurt (optional)
• Salt
• Black pepper
• Fresh cilantro or green onions (optional for garnish)

directions

1. Preheat oven to 375°F (190°C).
2. In a large skillet, heat olive oil over medium heat. Add sliced peppers and onions, sautéing for 4–5 minutes until slightly tender. Add garlic and cook for 1 more minute.
3. In a large bowl, combine cooked rice, cooked chicken, sautéed peppers and onions, drained diced tomatoes, taco or fajita seasoning, and half of the shredded cheese. Mix well.
4. Transfer the mixture to a greased 9×13-inch baking dish.
5. Top with the remaining cheese and cover with foil.
6. Bake for 20 minutes, then uncover and bake for another 10 minutes until the cheese is melted and bubbly.
7. Let rest for 5 minutes before serving. Garnish with cilantro or green onions if desired.

Servings and timing

This recipe serves 6 people.
Prep time: 15 minutes
Cook time: 30 minutes
Total time: 45 minutes

Variations

• Use cauliflower rice for a low-carb version.
• Add black beans or corn for extra texture and fiber.
• Replace chicken with ground turkey or beef.
• Stir in a dollop of cream cheese for a creamier texture.
• Use pepper jack cheese for extra spice.

storage/reheating

Store leftovers in an airtight container in the refrigerator for up to 4 days. Reheat in the microwave or in a 350°F (175°C) oven until hot. This casserole also freezes well—cool completely, wrap tightly, and freeze for up to 2 months. Thaw overnight in the fridge before reheating.

FAQs

Can I make this ahead of time?

Yes, assemble the casserole ahead and refrigerate until ready to bake. Add 5–10 minutes to the bake time if starting from cold.

Do I need to cook the rice beforehand?

Yes, use fully cooked rice before assembling the casserole.

Can I use rotisserie chicken?

Absolutely—shredded rotisserie chicken is a great shortcut and adds flavor.

Is this casserole spicy?

Not unless you add spicy seasoning or peppers. Adjust the heat with jalapeños or chili powder if desired.

Can I make it dairy-free?

Yes, use dairy-free cheese or skip the cheese altogether and top with avocado or salsa after baking.

What’s the best cheese to use?

Cheddar, Monterey Jack, or a Mexican blend melt well and complement the flavors.

Can I use frozen vegetables?

Yes, thaw and drain frozen peppers and onions before adding them to prevent excess moisture.

What should I serve with it?

It’s a complete meal on its own but pairs well with tortilla chips, guacamole, or a side salad.

Can I freeze individual portions?

Yes, portion and freeze in airtight containers for grab-and-go meals.

How do I make it vegetarian?

Skip the chicken and add black beans, extra veggies, or a plant-based protein substitute.

Conclusion

Chicken Fajita Rice Casserole is a flavorful, filling, and fuss-free meal that brings all the deliciousness of fajitas into a warm and cheesy baked dish. Perfect for weeknight dinners, meal prep, or feeding a crowd, this one-dish wonder is sure to become a staple in your recipe rotation.

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