Chicken Fajita Rice Casserole: Prepare to be amazed! Imagine the sizzling, vibrant flavors of chicken fajitas, but transformed into a comforting, cheesy, and incredibly easy-to-make casserole. This isn’t just dinner; it’s a fiesta in a dish, and I’m so excited to share this recipe with you!
While the exact origins of a “Chicken Fajita Rice Casserole” are a modern culinary creation, it draws heavily from the rich traditions of Tex-Mex cuisine. Fajitas themselves, born from the resourceful use of skirt steak by Mexican ranch workers in Texas, have evolved into a beloved dish enjoyed worldwide. This casserole takes those familiar, zesty flavors and combines them with the comforting simplicity of a classic rice bake.
What makes this Chicken Fajita Rice Casserole so irresistible? It’s the perfect blend of textures tender chicken, fluffy rice, crisp-tender vegetables, and gooey melted cheese. The vibrant spices create a symphony of flavor that dances on your tongue. But perhaps the best part is its convenience. It’s a one-dish wonder that’s perfect for busy weeknights, potlucks, or any occasion where you want a crowd-pleasing meal without spending hours in the kitchen. Trust me, once you try this, it will become a regular in your dinner rotation!

Ingredients:
- For the Chicken Fajita Filling:
- 2 boneless, skinless chicken breasts (about 1.5 lbs), cut into bite-sized pieces
- 1 large bell pepper (any color, or a mix), sliced
- 1 large onion, sliced
- 1 tbsp olive oil
- 1 packet (1 oz) fajita seasoning
- 1/2 tsp garlic powder
- 1/4 tsp cumin
- Salt and pepper to taste
- For the Rice:
- 1 cup long-grain rice, uncooked
- 2 cups chicken broth
- 1 (10 oz) can diced tomatoes and green chilies (like Rotel), undrained
- 1/2 cup frozen corn
- 1/4 cup chopped cilantro
- 1 tbsp lime juice
- For the Cheese Sauce:
- 4 tbsp butter
- 4 tbsp all-purpose flour
- 3 cups milk
- 4 cups shredded cheddar cheese (or a Mexican cheese blend)
- 1/4 tsp salt
- 1/4 tsp black pepper
- Optional Toppings:
- Sour cream
- Guacamole
- Salsa
- Chopped green onions
- Jalapeños (sliced)
Preparing the Chicken Fajita Filling:
- Heat the olive oil in a large skillet over medium-high heat.
- Add the sliced bell pepper and onion to the skillet. Cook, stirring occasionally, until they are softened and slightly caramelized, about 5-7 minutes. Don’t rush this step; getting a good sear on the veggies adds tons of flavor!
- Add the bite-sized chicken pieces to the skillet with the peppers and onions.
- Sprinkle the fajita seasoning, garlic powder, and cumin over the chicken and vegetables. Season with salt and pepper to taste.
- Cook, stirring frequently, until the chicken is cooked through and no longer pink inside, about 6-8 minutes. Make sure the internal temperature reaches 165°F (74°C) for food safety.
- Remove the chicken fajita mixture from the skillet and set aside.
Cooking the Rice:
- In a medium saucepan, combine the uncooked rice and chicken broth.
- Add the can of diced tomatoes and green chilies (Rotel), undrained, to the saucepan.
- Bring the mixture to a boil over high heat.
- Once boiling, reduce the heat to low, cover the saucepan, and simmer for 18-20 minutes, or until the rice is cooked and the liquid is absorbed. Resist the urge to lift the lid! You want the steam to do its work.
- Stir in the frozen corn, chopped cilantro, and lime juice. Fluff the rice with a fork.
Making the Cheese Sauce:
- In a medium saucepan, melt the butter over medium heat.
- Whisk in the all-purpose flour and cook for 1-2 minutes, stirring constantly, to create a roux. This will help thicken the sauce.
- Gradually whisk in the milk, a little at a time, ensuring there are no lumps.
- Continue whisking until the sauce thickens and comes to a simmer, about 5-7 minutes.
- Reduce the heat to low and gradually add the shredded cheddar cheese (or Mexican cheese blend), stirring constantly until the cheese is melted and the sauce is smooth.
- Season with salt and pepper. Taste and adjust seasonings as needed. A pinch of cayenne pepper can add a nice kick!
Assembling the Casserole:
- Preheat your oven to 350°F (175°C).
- Lightly grease a 9×13 inch baking dish.
- Spread the cooked rice evenly in the bottom of the prepared baking dish.
- Top the rice with the cooked chicken fajita mixture, spreading it evenly over the rice.
- Pour the cheese sauce over the chicken fajita mixture, ensuring it covers everything.
Baking the Casserole:
- Bake in the preheated oven for 20-25 minutes, or until the casserole is heated through and the cheese sauce is bubbly and lightly golden brown.
- Remove the casserole from the oven and let it cool for a few minutes before serving. This allows the cheese sauce to set slightly.
Serving and Enjoying:
- Cut the casserole into squares and serve hot.
- Garnish with your favorite toppings, such as sour cream, guacamole, salsa, chopped green onions, and sliced jalapeños.
- Enjoy your delicious Chicken Fajita Rice Casserole! This is a great dish for a weeknight dinner or a potluck.

Conclusion:
This Chicken Fajita Rice Casserole isn’t just another weeknight dinner; it’s a flavor explosion waiting to happen! From the vibrant colors of the bell peppers to the savory blend of spices and the comforting warmth of the rice, every bite is a fiesta in your mouth. I truly believe this recipe is a must-try because it’s incredibly easy to throw together, uses ingredients you likely already have on hand, and delivers a satisfying and delicious meal that the whole family will love. Forget complicated recipes and hours spent in the kitchen this casserole is your shortcut to a restaurant-quality dish without the restaurant price tag. But the best part? It’s incredibly versatile! Feel free to customize it to your liking. Want to kick up the heat? Add a pinch of cayenne pepper or a diced jalapeño to the vegetable mixture. For a creamier casserole, stir in a dollop of sour cream or Greek yogurt before baking. And if you’re looking for serving suggestions, the possibilities are endless. I personally love serving it with a side of guacamole, a dollop of salsa, and a sprinkle of fresh cilantro. You could also add a side of black beans or a simple green salad for a complete and balanced meal. Consider these variations to make it your own signature dish: * Vegetarian Option: Swap out the chicken for black beans, pinto beans, or even crumbled tofu for a delicious vegetarian version. * Cheesy Goodness: Add a layer of shredded Monterey Jack or pepper jack cheese on top during the last 10 minutes of baking for an extra cheesy and melty finish. * Spice It Up: Experiment with different fajita seasoning blends to find your perfect level of heat. * Make it a Bowl: Instead of baking, cook the rice and vegetables separately and assemble individual bowls with your favorite toppings. * Leftover Transformation: Turn any leftovers into delicious burrito bowls the next day! I’ve poured my heart into perfecting this Chicken Fajita Rice Casserole recipe, and I’m confident that you’ll enjoy it as much as my family and I do. It’s the perfect dish for busy weeknights, potlucks, or any occasion where you want to impress without spending hours in the kitchen. The combination of tender chicken, flavorful vegetables, and perfectly cooked rice creates a symphony of textures and tastes that will leave you wanting more. So, what are you waiting for? Gather your ingredients, preheat your oven, and get ready to experience the magic of this incredible casserole. I’m so excited for you to try it! And most importantly, I want to hear about your experience. Did you make any modifications? What were your favorite toppings? What did your family think? Please, share your thoughts and photos in the comments below. Your feedback is invaluable, and I can’t wait to see your culinary creations! Happy cooking! I hope this recipe becomes a staple in your household, just like it has in mine. Enjoy! Print
Chicken Fajita Rice Casserole: Easy Recipe for a Delicious Dinner
- Total Time: 80 minutes
- Yield: 6–8 servings 1x
Description
Cheesy Chicken Fajita Rice Casserole with tender chicken, fajita veggies, and creamy cheese sauce. Perfect for weeknight dinner!
Ingredients
- 2 boneless, skinless chicken breasts (about 1.5 lbs), cut into bite-sized pieces
- 1 large bell pepper (any color, or a mix), sliced
- 1 large onion, sliced
- 1 tbsp olive oil
- 1 packet (1 oz) fajita seasoning
- 1/2 tsp garlic powder
- 1/4 tsp cumin
- Salt and pepper to taste
- 1 cup long-grain rice, uncooked
- 2 cups chicken broth
- 1 (10 oz) can diced tomatoes and green chilies (like Rotel), undrained
- 1/2 cup frozen corn
- 1/4 cup chopped cilantro
- 1 tbsp lime juice
- 4 tbsp butter
- 4 tbsp all-purpose flour
- 3 cups milk
- 4 cups shredded cheddar cheese (or a Mexican cheese blend)
- 1/4 tsp salt
- 1/4 tsp black pepper
- Sour cream
- Guacamole
- Salsa
- Chopped green onions
- Jalapeños (sliced)
Instructions
- Preparing the Chicken Fajita Filling: Heat the olive oil in a large skillet over medium-high heat. Add the sliced bell pepper and onion to the skillet. Cook, stirring occasionally, until they are softened and slightly caramelized, about 5-7 minutes.
- Add the bite-sized chicken pieces to the skillet with the peppers and onions. Sprinkle the fajita seasoning, garlic powder, and cumin over the chicken and vegetables. Season with salt and pepper to taste.
- Cook, stirring frequently, until the chicken is cooked through and no longer pink inside, about 6-8 minutes. Make sure the internal temperature reaches 165°F (74°C) for food safety. Remove the chicken fajita mixture from the skillet and set aside.
- Cooking the Rice: In a medium saucepan, combine the uncooked rice and chicken broth. Add the can of diced tomatoes and green chilies (Rotel), undrained, to the saucepan.
- Bring the mixture to a boil over high heat. Once boiling, reduce the heat to low, cover the saucepan, and simmer for 18-20 minutes, or until the rice is cooked and the liquid is absorbed.
- Stir in the frozen corn, chopped cilantro, and lime juice. Fluff the rice with a fork.
- Making the Cheese Sauce: In a medium saucepan, melt the butter over medium heat. Whisk in the all-purpose flour and cook for 1-2 minutes, stirring constantly, to create a roux.
- Gradually whisk in the milk, a little at a time, ensuring there are no lumps. Continue whisking until the sauce thickens and comes to a simmer, about 5-7 minutes.
- Reduce the heat to low and gradually add the shredded cheddar cheese (or Mexican cheese blend), stirring constantly until the cheese is melted and the sauce is smooth. Season with salt and pepper. Taste and adjust seasonings as needed.
- Assembling the Casserole: Preheat your oven to 350°F (175°C). Lightly grease a 9×13 inch baking dish.
- Spread the cooked rice evenly in the bottom of the prepared baking dish. Top the rice with the cooked chicken fajita mixture, spreading it evenly over the rice.
- Pour the cheese sauce over the chicken fajita mixture, ensuring it covers everything.
- Baking the Casserole: Bake in the preheated oven for 20-25 minutes, or until the casserole is heated through and the cheese sauce is bubbly and lightly golden brown.
- Remove the casserole from the oven and let it cool for a few minutes before serving.
- Serving and Enjoying: Cut the casserole into squares and serve hot. Garnish with your favorite toppings, such as sour cream, guacamole, salsa, chopped green onions, and sliced jalapeños.
Notes
- Don’t rush searing the veggies; getting a good sear adds tons of flavor!
- Resist the urge to lift the lid while the rice is simmering! You want the steam to do its work.
- A pinch of cayenne pepper can add a nice kick to the cheese sauce!
- Letting the casserole cool slightly after baking allows the cheese sauce to set.
- Prep Time: 20 minutes
- Cook Time: 60 minutes
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