This post may contain affiliate links. Please read our disclosure policy.
If you love sizzling skillet fajitas but don’t love standing over the stove, this Chicken Fajita Casserole is about to become your new weeknight hero. It’s creamy, cheesy, packed with flavor, and baked all in one dish for the easiest dinner ever. Perfect for anyone looking for a satisfying, wholesome dinner option.
Chicken Fajita Casserole
If you’re searching for easy chicken fajita bake, Mexican chicken casserole, or a creamy fajita chicken recipe, this is the one.
Pin this now to save it for later
Pin It NowThis recipe combines tender chicken breasts, colorful bell peppers, zesty fajita seasoning, and a rich cream cheese salsa sauce into a bubbly, crowd-pleasing casserole your whole family will devour. Bonus? It’s naturally low carb and gluten free, making it perfect for a variety of diets.
Why You’ll Love This Chicken Fajita Casserole
- One pan, minimal cleanup
- Ready in about 30 minutes
- Family friendly and picky eater approved
- Perfect for meal prep
- Keto and low carb friendly
Ingredients:
Thin-sliced boneless skinless chicken breasts– You can use unsliced or thick breasts, but you’ll need to increase the baking time to about 40 minutes to ensure that the chicken is thoroughly cooked. Use a meat thermometer to ensure the chicken reaches at least 165°F.
Cream cheese– I used a full-fat cream cheese, but ⅓ less fat cream cheese would also work.
Chunky salsa– You can use hot or mild, based on what you and your family like.
Minced roasted garlic– This is the jarred garlic, but you could replace it with 1 tsp of garlic powder if you have that on hand.
Fajita seasoning– Hot or mild is fine.
Red bell pepper– Any color works. Yellow, orange, or another green pepper are all perfect, but I tend to like using different colors when I’m cooking for kids because it gets them used to seeing colorful food, and the red and orange peppers are slightly sweeter for younger palates.
Green bell pepper– Any color works if you don’t like green bell peppers.
Mexican blend shredded cheese– You could use Colby Jack, pepper jack, or cheddar cheese.
Recipe Tips for the Best Chicken Fajita Casserole
Soften the cream cheese fully. This prevents lumps and gives you a silky smooth sauce.
Use thin-sliced chicken. It cooks faster and more evenly, ensuring juicy results.
Don’t overbake. Check at 20 minutes. Chicken can dry out quickly once it hits 165°F.
Slice peppers evenly. Uniform strips ensure consistent texture and presentation.
Want extra flavor? Add sliced onions or a squeeze of lime juice before baking.
How to Make Chicken Fajita Casserole
Make the Creamy Sauce – In a medium bowl, combine:
- Softened cream cheese
- Chunky salsa
- Fajita seasoning
- Minced roasted garlic
Mix until smooth and creamy. (Pro tip: fully softened cream cheese makes this step effortless.)
Add the Chicken – Arrange the thin-sliced chicken breasts in a single layer in the bottom of the casserole dish.
Assemble – Spread the cream cheese mixture evenly over the chicken. Top with the sliced red and green bell peppers.
Bake – Bake uncovered for 20 minutes, or until the internal temperature of the chicken reaches 165°F.
Melt the Cheese – Remove from the oven and sprinkle the Mexican blend cheese evenly over the top. Return to the oven for 5 additional minutes, until melted and bubbly.
What to Serve with Chicken Fajita Casserole
This dish is incredibly versatile. Try serving it with:
- Cilantro lime rice
- Warm flour or corn tortillas
- Cauliflower rice (low carb option)
- Mexican street corn
- A simple side salad with avocado
- Refried beans or black beans
You can even shred the baked chicken and use it for:
- Nachos
- Tacos
- Burritos
- Quesadillas
Yes! Boneless skinless thighs work beautifully and stay extra juicy.
It’s mild as written. For more heat, use hot salsa or add jalapeños.
Absolutely. Assemble the casserole, cover tightly, and refrigerate up to 24 hours before baking.
You would need dairy-free cream cheese and shredded cheese alternatives. Texture may vary slightly.
More Chicken Casseroles
Chicken Fajita Bake Recipe
Creamy Chicken Fajita
Equipment
- 9×13 Casserole dish
- Non-stick cooking spray
- Mixing bowl
- spoon
- Rubber or offset spatula
Ingredients
- 2 pounds thin-sliced boneless skinless chicken breasts (about 4-5)
- 1 (8-ounce) block cream cheese, softened
- ½ cup chunky salsa
- 1 (1-ounce) packet fajita seasoning
- 1 Tablespoon minced roasted garlic
- 1 large red bell pepper sliced into strips
- 1 large green bell pepper sliced into strips
- 2 cups Mexican blend shredded cheese
- Cilantro for garnish (optional)
- Sliced limes for serving (optional)
Instructions
- Prepare your dish. Preheat your oven to 375°F and spray a 9×13 casserole dish with non-stick cooking spray.
- Add the chicken. Arrange the chicken in a single layer in the bottom of the casserole dish and set aside.
- Make the creamy sauce. In a medium bowl, combine the cream cheese, salsa, fajita seasoning, and garlic. Make sure your cream cheese is softened to make mixing easy!
- Add the sauce and bell peppers. Spread the mixture evenly over the chicken and top with the sliced bell peppers.
- Bake. Bake uncovered for 20 minutes or until the internal temperature of the chicken is 165°F.
- Melt the cheese. Remove from the oven and sprinkle with cheese before placing the entire dish back in the oven for an additional 5 minutes to allow the cheese to melt.
- Garnish and serve. Garnish with chopped cilantro and serve warm with sliced limes.
