This cheesy Fajita Chicken Casserole is a hearty, family-friendly one-dish meal made with shredded chicken, fluffy seasoned rice, colorful bell peppers, creamy chicken soup, and melted cheese. It combines the flavors of chicken fajitas with the comfort of a baked rice casserole.
The image shows the dish and the beginning of its ingredient list. The recipe below fills in the remaining ingredients, measurements, cooking instructions, nutrition estimates, substitutions, and frequently asked questions.
15 min
Prep time
35–45 min
Bake time
6 servings
Serves
Easy
Difficulty
1. Ingredients
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Main ingredients
4 cups shredded cooked chicken
2 cups instant rice, uncooked
1 can (10.5 oz / 298 g) cream of chicken soup
1 cup chicken broth
1 medium red bell pepper, diced
1 medium green bell pepper, diced
1 small onion, diced
2 cups shredded cheese (cheddar, Monterey Jack, or a blend)
Fajita seasoning
1 tablespoon olive oil
2 teaspoons chili powder
1 teaspoon ground cumin
1 teaspoon paprika
1/2 teaspoon garlic powder
1/2 teaspoon onion powder
1/2 teaspoon dried oregano
1/2 teaspoon salt, or to taste
1/4 teaspoon black pepper
Optional toppings
2 tablespoons chopped fresh cilantro
Sliced green onions
A squeeze of fresh lime juice
Sliced jalapeños or red pepper flakes
Important rice note: This recipe is designed for instant rice, not regular long-grain uncooked rice. Regular rice needs a different liquid ratio and cooking time.
2. Step-by-step cooking instructions
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Step 1: Preheat the oven
Preheat your oven to 375°F (190°C). Lightly grease a 9 × 13-inch (23 × 33 cm) baking dish with cooking spray or a little oil.
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Step 2: Cook the vegetables
Heat olive oil in a skillet over medium heat. Add the diced red pepper, green pepper, and onion. Cook for 4–5 minutes until slightly softened. Stir in the chili powder, cumin, paprika, garlic powder, onion powder, oregano, salt, and black pepper.
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Step 3: Mix the casserole
In a large bowl, combine the shredded chicken, uncooked instant rice, cream of chicken soup, chicken broth, cooked vegetables, and 1 cup of shredded cheese. Stir until everything is evenly distributed.
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Step 4: Transfer to the baking dish
Spread the mixture evenly in the prepared dish. Cover tightly with aluminum foil to retain moisture and help the instant rice cook.
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Step 5: Bake until tender
Bake covered for 25–30 minutes. Check that the rice is tender and the mixture is hot throughout. If the rice needs more time, cover and bake for another 5–10 minutes, checking that there is enough liquid.
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Step 6: Add cheese and finish baking
Remove the foil, sprinkle the remaining 1 cup of cheese over the top, and bake uncovered for another 5–10 minutes, until melted and bubbly. Let the casserole rest for 5 minutes before serving.
Food safety: If using freshly cooked chicken, ensure it reaches 165°F (74°C). If using previously cooked or refrigerated chicken, the entire casserole should reach 165°F (74°C) when reheated.
3. Estimated nutrition information
The following figures are estimates for one serving out of six, using the ingredients and quantities listed above. Actual values vary by brand, cheese type, soup, and chicken cut.
Per serving · approximately
500–600 calories
Protein
35–45 g
Carbohydrates
40–50 g
Total fat
18–25 g
Fiber
2–4 g
Sugar
3–6 g
Sodium
800–1,300 mg
Estimated ranges, not laboratory-tested or a verified nutrition label.
How to make it healthier
Lower calorie: Use reduced-fat cheese, lean chicken breast, and reduced-fat cream soup.
Lower sodium: Choose low-sodium chicken broth and soup, and reduce the added salt and seasoning.
Higher protein: Increase the chicken slightly and reduce the cheese.
More vegetables: Add mushrooms, zucchini, or extra bell peppers.
Higher fiber: Serve with beans or use a suitable higher-fiber rice alternative, adjusting the cooking method as needed.
4. Allergens and dietary information
Dietary concern
Information
Dairy
Contains dairy if made with regular cheese.
Gluten
Cream of chicken soup and seasoning mixes may contain wheat. Check labels.
Soy
May be present in processed soup, cooking spray, or packaged seasonings. Check labels.
Eggs
Not typically required, but check packaged ingredients for cross-contact or added ingredients.
Nuts and peanuts
Not normally ingredients in this recipe, but packaged products and kitchen cross-contact can pose a risk.
Halal
Use halal-certified chicken and check the soup, broth, and cheese ingredients if halal compliance is required.
Vegetarian
Not vegetarian as written; chicken and chicken soup would need suitable replacements.
Allergy warning: If cooking for someone with a serious allergy, verify every product label and avoid cross-contact. The ingredient list alone cannot guarantee an allergen-free dish.
5. Frequently asked questions
Q1. Can I use regular rice instead of instant rice?
Yes, but not with the same instructions. Regular uncooked rice takes longer to cook and needs a different amount of liquid. For best results, cook the rice separately before mixing it into the casserole, or use a recipe specifically formulated for uncooked regular rice.
Q2. Can I use rotisserie chicken?
Absolutely. Remove the skin and bones, shred the meat, and measure out four cups. This is one of the easiest ways to save preparation time.
Q3. Can I make it without cream of chicken soup?
Yes. Make a thick sauce using approximately 2 tablespoons butter, 2 tablespoons flour, and 1 cup milk or chicken broth, cooking until thickened. For a gluten-free version, use a suitable gluten-free thickener.
Q4. Why is my casserole dry?
The rice may have absorbed more liquid than expected, the dish may not have been covered tightly, or it may have baked too long. Add a little warm broth, cover, and continue baking until the rice is tender.
Q5. Why is my casserole watery?
It may need more baking time, or the vegetables may have released extra moisture. Bake uncovered for a few additional minutes once the rice is cooked, allowing excess moisture to evaporate.
Q6. Can I prepare it ahead of time?
Yes. Prepare the chicken and vegetable mixture in advance and refrigerate it. For the best rice texture, keep the instant rice separate until you are ready to bake, then combine the ingredients with the measured liquid. If baking directly from the refrigerator, allow extra time and verify the center reaches 165°F (74°C).
Q7. Can I freeze this casserole?
Yes. For the best texture, freeze it after baking and cooling, divided into airtight portions. Thaw in the refrigerator and reheat until the center reaches 165°F (74°C). Rice can become softer after freezing.
Q8. How long does it keep in the refrigerator?
Store leftovers in shallow, airtight containers within two hours of cooking. Refrigerate for 3–4 days. Reheat only the portion you need until it reaches 165°F (74°C).
Q9. Which cheese works best?
Cheddar gives a stronger flavor, Monterey Jack melts smoothly, and a cheddar–Monterey Jack blend provides both. Mozzarella can be added for extra stretchiness.
Q10. What can I serve with chicken fajita casserole?
Serve it with a green salad, steamed vegetables, corn, salsa, guacamole, lime wedges, or plain yogurt or sour cream. Because the casserole contains both rice and chicken, simple vegetable sides work particularly well.
6. Recipe variations
Spicy version: Add diced jalapeños, cayenne pepper, or chipotle powder.
Creamy version: Stir in 2–4 tablespoons of sour cream after baking.
Extra cheesy: Add another half cup of cheese to the topping.
Black bean version: Add one drained and rinsed can of black beans; check that the dish has sufficient liquid.
Low-carb version: Replace the rice with cauliflower rice and reduce the broth, since cauliflower rice releases moisture and cooks differently.
Southwestern version: Add drained corn, black beans, and a little smoked paprika.
7. Quick recipe card
Fajita Chicken Casserole
Serves 6 · Oven 375°F (190°C)
Ingredients
4 cups cooked shredded chicken
2 cups uncooked instant rice
1 can (10.5 oz / 298 g) cream of chicken soup
1 cup chicken broth
1 red bell pepper and 1 green bell pepper, diced
1 small onion, diced
2 cups shredded cheese
1 tablespoon olive oil
Chili powder, cumin, paprika, garlic powder, onion powder, oregano, salt, and black pepper
Method
Preheat oven to 375°F (190°C) and grease a 9 × 13-inch baking dish.
Sauté peppers and onion in olive oil; stir in seasonings.
Mix chicken, instant rice, soup, broth, vegetables, and 1 cup cheese.
Transfer to the dish, cover with foil, and bake for 25–30 minutes.
Check rice tenderness and liquid; bake longer if needed.
Top with remaining cheese and bake uncovered for 5–10 minutes.
Rest for 5 minutes and serve hot.
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