Chicken Fajita Casserole Recipe
Introduction
Chicken Fajita Casserole is a comforting one-dish meal packed with bold flavors and easy-to-find ingredients. This hearty casserole combines tender chicken, spicy fajita seasoning, and melty cheese, making it perfect for a busy weeknight dinner.

Ingredients
- 4 cups shredded cooked chicken (about 2 large breasts)
- 2 cups instant rice
- 1 (10.5-ounce) can cream of chicken soup
- 1 cup sour cream
- 1 cup frozen diced onion and bell pepper blend
- 1 (10-ounce) can diced tomatoes with chilies (undrained; like Rotel)
- 1 1/2 cups chicken broth
- 1 (1.12-ounce) packet fajita seasoning (I prefer McCormick)
- 1 (8-ounce) package shredded Mexican blend cheese (about 2 cups)
Instructions
- Step 1: Preheat the oven to 350°F. Lightly spray a 9×13 inch baking dish with nonstick cooking spray.
- Step 2: In a large bowl, stir together the shredded chicken, uncooked rice, cream of chicken soup, sour cream, frozen diced onion and bell pepper, diced tomatoes with chilies (including liquid), chicken broth, fajita seasoning, and about half of the shredded cheese.
- Step 3: Pour the mixture into the prepared baking dish and spread it evenly. Cover tightly with aluminum foil.
- Step 4: Bake for 35 to 45 minutes or until the rice is tender and the casserole is heated through.
- Step 5: Remove the foil, top the casserole with the remaining cheese, and return to the oven just until the cheese melts, about 5 minutes.
Tips & Variations
- For extra heat, add a diced jalapeño or a pinch of cayenne pepper to the mixture.
- Substitute cooked brown rice for instant rice, but increase baking time to about 60 minutes and add extra broth as needed.
- Add black beans or corn for extra texture and nutrition.
- Use rotisserie chicken for convenience.
Storage
Store leftover casserole in an airtight container in the refrigerator for up to 3 days. Reheat individual servings in the microwave until warmed through or reheat the whole dish covered with foil at 350°F until hot. Avoid freezing, as the texture of the rice and dairy may change.
How to Serve

Serve this delicious recipe with your favorite sides.
FAQs
Can I use fresh vegetables instead of frozen?
Yes, you can use fresh diced onions and bell peppers. Just sauté them lightly before mixing in to soften and enhance their flavor.
Is it possible to make this casserole gluten-free?
Yes. Ensure that the cream of chicken soup and fajita seasoning you use are labeled gluten-free. Most instant rice and other ingredients are naturally gluten-free.
Print
Chicken Fajita Casserole Recipe
- Total Time: 1 hour
- Yield: 6 to 8 servings 1x
Description
This Chicken Fajita Casserole is a creamy, cheesy, and flavorful one-dish meal perfect for weeknight dinners. Combining shredded cooked chicken, instant rice, fajita seasoning, and a zesty blend of tomatoes, peppers, and onions, it’s baked to perfection and topped with melted Mexican cheese for a comforting Tex-Mex-inspired dish that’s quick and easy to prepare.
Ingredients
Chicken Fajita Casserole Ingredients
- 4 cups shredded cooked chicken (about 2 large breasts)
- 2 cups instant rice
- 1 (10.5-ounce) can cream of chicken soup
- 1 cup sour cream
- 1 cup frozen diced onion and bell pepper blend
- 1 (10-ounce) can diced tomatoes with chilies (undrained; like Rotel)
- 1 1/2 cups chicken broth
- 1 (1.12-ounce) packet fajita seasoning (preferably McCormick)
- 1 (8-ounce) package shredded Mexican blend cheese (about 2 cups), divided
Instructions
- Preheat Oven and Prepare Dish: Preheat your oven to 350°F (175°C). Lightly spray a 9×13 inch baking dish with nonstick cooking spray to prevent sticking.
- Mix Ingredients: In a large bowl, combine the shredded cooked chicken, uncooked instant rice, cream of chicken soup, sour cream, frozen diced onion and bell pepper blend, diced tomatoes with chilies (with juices), chicken broth, fajita seasoning, and about half of the shredded Mexican blend cheese. Stir everything well until evenly mixed.
- Assemble and Bake: Pour the mixture evenly into the prepared baking dish, spreading it out smoothly. Cover tightly with aluminum foil to seal in moisture. Bake in the preheated oven for 35 to 45 minutes, or until the rice is tender and fully cooked.
- Add Cheese Topping and Finish Baking: Carefully remove the foil from the casserole and sprinkle the remaining shredded cheese on top. Return the casserole to the oven and bake until the cheese melts and becomes bubbly, about 5 to 10 minutes. Remove from oven and let it rest a few minutes before serving.
Notes
- Using cooked shredded chicken saves time and results in tender chicken pieces blending well with the casserole.
- Instant rice is used here for quicker cooking; regular rice would require longer baking time.
- Adjust the fajita seasoning level to suit your taste preference, especially if you prefer less spicy dishes.
- Covering the casserole with foil during most of baking helps steam the rice and keep the casserole moist.
- Leftovers can be stored in an airtight container in the refrigerator for up to 3 days and reheated in the oven or microwave.
- Prep Time: 15 minutes
- Cook Time: 45 minutes
- Category: Main Course
- Method: Baking
- Cuisine: Tex-Mex
Keywords: Chicken fajita casserole, easy chicken casserole, Tex-Mex chicken bake, instant rice casserole, cheesy chicken casserole

