If you’re searching for a quick weeknight dinner recipe that’s packed with bold flavor and Tex-Mex comfort, this Fajita Chicken Casserole is the perfect solution. Loaded with tender chicken, fajita spices, melty cheese, and creamy rice, this easy casserole is a one-pan wonder that satisfies the whole family. Even better? It uses affordable pantry staples, making it a budget-friendly and high-protein dinner idea you’ll want on repeat.
Why You’ll Love This Recipe
One-Dish Meal – Minimal cleanup with everything cooked in one pan
Budget-Friendly – Made with affordable ingredients you probably have on hand
Family Favorite – Cheesy, creamy, and full of fajita flavor
Meal Prep Friendly – Great for leftovers or make-ahead meals
Customizable – Easily adjustable based on spice preferences or pantry contents
Ingredients Breakdown:
Protein & Base:
4 cups shredded cooked chicken – A hearty base packed with protein; rotisserie chicken is a great shortcut.
2 cups instant rice – Cooks up tender in the casserole, soaking in all the flavors.
Creamy & Flavorful Sauce:
1 can cream of chicken soup (10.5 oz) – Adds a creamy, savory element.
1 cup sour cream – Brings tanginess and creaminess.
1 ½ cups chicken broth – Helps cook the rice and enhances the savory depth.
Fajita Flavor Essentials:
1 cup frozen diced onion and bell pepper blend – Classic fajita veggies made easy.
1 can diced tomatoes with chilies (10 oz, like Ro*Tel) – Adds acidity, spice, and moisture.
1 packet fajita seasoning (1.12 oz) – The spice blend that ties it all together with smoky, zesty flavor.
Cheesy Topping:
8 oz shredded Mexican blend cheese (about 2 cups) – Melts beautifully and finishes the casserole with a gooey, golden layer.
Tips and Tricks
Adjust the spice – Use mild or spicy Ro*Tel depending on your heat preference
Use rotisserie chicken for ultimate convenience and flavor
Swap cheeses – Try pepper jack or sharp cheddar for extra boldness
Add extras – Stir in corn, black beans, or jalapeños for more texture and flavor
Variations and Customizations
Low-Carb Option: Replace rice with cauliflower rice and reduce broth slightly
Vegetarian Twist: Swap chicken for black beans and extra veggies
Creamier Version: Add a few ounces of cream cheese to the mix
Pairing Suggestions
This cheesy Tex-Mex casserole pairs well with:
Guacamole or avocado slices
Crisp green salad with lime vinaigrette
Cornbread or tortilla chips
Refried or black beans
Storage Instructions
Refrigerate: Store leftovers in an airtight container for up to 4 days
Freeze: Wrap the casserole tightly or store in freezer-safe containers for up to 2 months
Reheat: Warm in the microwave or in a 350°F oven until heated through
Popular Questions
Can I make this casserole ahead of time?
Yes. Assemble the casserole up to 24 hours in advance, refrigerate, and bake when ready.
Can I use long-grain rice instead of instant?
Instant rice is recommended for timing. If using regular rice, pre-cook it fully before adding.
Is this recipe gluten-free?
Use a gluten-free cream of chicken soup and double-check the fajita seasoning to ensure no hidden gluten.
