Fajita Chicken Casserole Recipe – Packed with flavor and so quick to throw together! This chicken casserole is delicious as it is nutritious. Loaded with juicy chicken, peppers, and gooey cheese, seasoned with fajita spices, and baked to perfection, this quick chicken casserole dinner is equally wholesome and tasty. Since it only has a few simple ingredients and is all baked in one dish, you can have the fajita chicken casserole prepped and in the oven in as little as 10 minutes. If you are looking for a simple and delicious meal idea, try this keto-friendly, low-carb recipe tonight, it’s sure to impress the entire family. Make sure to visit our other chicken breasts recipes too. Enjoy!
Photo credit: © Eatwell101.com
Ingredients list for the fajita chicken casserole recipe
- 3 or 4 small chicken breasts (1 1/2 lbs – 750g) skinless, boneless – or 2 large chicken breasts, split lengthwise
- 2 bell peppers, red and green, seeded and cut into strips
- 1 medium onion, minced
- 1 teaspoon cumin powder
- 1 1/2 teaspoon chili powder
- 1 teaspoon garlic powder, or minced garlic
- 2 teaspoon paprika
- 1/2 teaspoon salt and fresh cracked pepper to taste
- 1 tablespoon vegetable oil
- 1 cup shredded Mozzarella (or your favorite cheese, Pepperjack, Monterrey Jack, Cheddar…)
- Fresh chopped cilantro, or parsley, for garnish
Photo credit: © Eatwell101.com
Photo credit: © Eatwell101.com
Photo credit: © Eatwell101.com
Photo credit: © Eatwell101.com
Photo credit: © Eatwell101.com
Photo credit: © Eatwell101.com
Photo credit: © Eatwell101.com
Photo credit: © Eatwell101.com
Photo credit: © Eatwell101.com
Directions
How to make the fajita chicken casserole:
1. Preheat your oven to 400°F (200°C). Lightly grease a baking dish.
2. Place chicken breasts on a shallow plate. Sprinkle cumin, chili powder, garlic, paprika, salt, and pepper on both sides. Keep some of the spices for sprinkling over the vegetable.
3. Arrange chicken breasts into the prepared baking dish, and drizzle with oil. Top chicken breasts with bell peppers and onion, then sprinkle some of the remaining fajita seasonings. Finish the casserole with shredded mozzarella cheese on top.
4. Bake the fajita chicken casserole for 20 – 30 minutes (if you split the chicken breasts lengthwise, or depending on the thickness); until chicken is cooked through and reaches an internal temperature of 165°F (74°C). You can broil your fajita chicken casserole for 2 minutes at the end to crisp up the top if you like. Serve the fajita chicken casserole immediately over cauliflower rice, steamed vegetable, zucchini noodles, or as is… enjoy!
Photo credit: © Eatwell101.com
Tips for the Fajita Chicken Breasts Casserole Recipe
- You can bake the chicken casserole without the cheese and add it at the end before broiling.
- Add chopped spicy sausage when cooking the fajita chicken casserole if you like a meatier dish.
- You can cut the chicken breasts into cubes to speed up the baking time.
- Freeze individual portions of the fajita chicken breasts casserole to have a comforting evening dinner when you don’t feel like cooking from scratch.
- Some of our readers found that the chicken fajita casserole has a better consistency if you cook the onions and peppers before adding them to the casserole. Cook onions in a skillet with a little bit of olive oil until translucent; add the peppers shortly before the onions are done. Then proceed as directed for the recipe.
What other readers say about this fajita chicken casserole recipe
“I didn’t measure seasoning but sprinkled liberally. It was delicious. Super easy and takes very little time. This one is a keeper!!!” – David
“I also used Mexican blend cheese and added shredded queso. The only other change was I used red, yellow, and orange peppers and left out the green and I didn’t measure the spices, just sprinkled generously. Especially the chili powder :) It was delicious!!” – Lauri
“Delicious! Family pleaser! Quick and easy! Picky eaters are ready for next time–no leftovers. Served the fajita chicken casserole over rice, with tostadas.” – Georgie
“100% recommend. I used boneless skinless chicken thighs instead of chicken breasts. Also added 4 cheese mexican instead of Mozzarella. If you’re in a pinch or don’t have all the seasonings, prepackaged Fajita seasoning works well too. For extra stuff, added sour cream and salsa to my personal plate and it was AMAZING” – Kelly
“OMG! This was excellent! I used chicken thighs instead of breasts and I cooked it 30 minutes instead of 20. Chicken was moist and cooked perfect. I used pepperjack cheese. Will definitely make this again!” – Chris
More chicken casserole recipes
- Spinach Chicken Casserole with Cream Cheese and Mozzarella
- French Onion Chicken Casserole
- Jalapeño Popper Chicken Casserole
- Broccoli Chicken Casserole with Cream Cheese and Mozzarella
Photo credit: © Eatwell101.com
Reviews (53)
Leave a reviewLeave a Reply
Nanette
2025-04-21 19:11:22
It was very easy to prepare and the seasoning was perfect. The recipe is going into my collection. I will definitely make it again…and again
Debra
2025-04-06 21:45:52
Made this tonight. We love it. The crunchy peppers and onions and seasonings where awesome. Very good. Thank you for this receipe. Its a keeper!
Louise
2025-03-30 18:38:00
Just made this tonight for dinner, it was hands down a fabulous meal, and a keeper!!!
Francine
2025-01-23 19:43:50
Very tasty and easy to prepare. This is great for left overs the next night in tortillas. Yum, thanks
Shawn
2024-09-28 17:13:19
I love to find meals that take little to no time to prepare. (I keep sliced peppers and onions frozen for quick use) Tasted great. I recommend drying the chicken so there is not a lot of liquid in the bottom. Delicious.
