Fajita Chicken Casserole Bake

Category: Dinner Ideas That Actually Work

This hearty bake combines shredded chicken, creamy soup, tender rice, and melted Mexican cheese with bold fajita spices and bell peppers. The mixture is assembled in a baking dish, covered, and baked until the rice is fluffy and flavors meld beautifully. A final layer of cheese is added and melted for a golden finish. Each bite delivers smoky, comforting Tex-Mex notes and a satisfying mix of textures. Let it rest briefly before serving to ensure perfect slices. This one-dish meal is ideal for gatherings or easy weeknight suppers and made to please a crowd. Pair with fresh toppings or a crisp salad for added flair.

Clare Recipes
Created By Lily Chen
Updated on Sat, 06 Sep 2025 16:56:00 GMT
A dish of food with rice and chicken. Save
A dish of food with rice and chicken. | lilicooks.com

Bold fajita flavors tender chicken and tangy cheese come together in this casserole that is perfect for busy weeknights or any time you need a comforting crowd-pleaser The balance of Tex Mex spices creamy richness and simple prep made this a staple at my house when everyone is craving cheesy chicken and rice but I do not want to stand at the stove forever

I started making this after exhausting the usual taco night lineup and it quickly became a favorite on weekends when the whole family gathers around the table for seconds

Ingredients

  • Shredded cooked chicken breast: the lean protein backbone go for rotisserie or leftover roast chicken for best flavor and ease
  • Instant white rice: soaks up all the flavorful liquid and bakes up tender avoid regular rice which may stay hard
  • Cream of chicken soup: makes everything creamy and binds the casserole low sodium versions work well too
  • Sour cream: adds tang and richness full fat tastes best
  • Frozen diced onion and bell pepper blend: saves chopping time and brings classic fajita flavor look for bright colors and firm pieces
  • Diced tomatoes with chilies: for juicy texture and a mild spicy kick undrained for extra moisture
  • Chicken broth: helps cook the rice and deepens the flavors choose a brand that is not overly salty
  • Fajita seasoning: adds the signature Tex Mex boldness check blend for freshness and fragrant aroma
  • Mexican style shredded cheese blend: creates the gooey topping and holds the casserole together pre shredded saves time and melts easily

Step by Step Instructions

Prep The Pan:
Lightly grease a large ovenproof dish with nonstick spray so nothing sticks during baking
Mix The Casserole Base:
In a big bowl toss together chicken instant rice soup sour cream frozen veggies undrained tomatoes chicken broth fajita seasoning and half of the cheese Use a sturdy spatula to make sure everything is evenly coated and there are no dry pockets
Layer And Smooth:
Scrape the mixture into your prepared dish Spread it right to the edges and smooth the surface for even baking
First Bake Covered:
Tightly cover your dish with foil and slide it into a hot oven Bake at 175 degrees Celsius for 35 minutes This lets the rice steam and all the flavors meld
Cheese Topping And Final Bake:
Take off the foil sprinkle the rest of the cheese over the top and return to the oven Bake uncovered for 10 minutes more The cheese should be bubbling and golden in spots
Rest Before Serving:
Take the casserole out and let it sit for five minutes before slicing This helps the rice settle and makes portioning neat and tidy
A dish of chicken and rice. Save
A dish of chicken and rice. | lilicooks.com

My favorite part is that golden cheesy crust on top which my kids always race to claim for themselves The fajita seasoning means every bite tastes vibrant and just a little bit smoky The first time we shared it at a potluck people were lining up for seconds

Storage Tips

Store leftovers tightly wrapped in foil or in airtight containers in the fridge for up to four days If you plan to freeze portion the casserole and wrap it well so the rice stays moist When reheating cover loosely with foil and bake until hot or zap individual pieces in the microwave on medium power to prevent the cheese from drying out

Ingredient Substitutions

You can swap shredded turkey for the chicken or use cooked quinoa for a different texture If you like things spicier use medium or hot diced tomatoes with chilies For a dairy free version try plain coconut yogurt in place of sour cream and a vegan cheese blend Checking the fajita seasoning label is helpful if you avoid gluten or want to avoid extra salt

A dish of food with rice and chicken. Save
A dish of food with rice and chicken. | lilicooks.com

Serving Suggestions

Serve this casserole with a simple green salad with lime vinaigrette or top with sliced avocado and fresh cilantro for extra color For big gatherings I sometimes offer bowls of crumbled tortilla chips or a side of black beans Corn on the cob or fresh tomato salsa on the side turns it into a hearty Tex Mex feast

Cultural Background

This casserole draws inspiration from sizzling fajitas a Tex Mex classic that combines vibrant vegetables and seasoned chicken with bright spices By layering these staples and baking with a cheesy topping the dish combines the convenience of American casseroles with the bold flavors of the Southwest It is a real meeting point between old school comfort food and festive Mexican inspired meals

Recipe FAQs

→ Can I use leftover rotisserie chicken?

Yes, shredded rotisserie chicken works perfectly and adds extra flavor to the casserole.

→ Can this dish be made ahead of time?

Absolutely. Assemble the casserole, cover, and refrigerate up to 24 hours before baking as directed.

→ Are there alternatives to instant rice?

Quick-cooking rice varieties or pre-cooked rice can be used, but cooking times may need minor adjustment.

→ How do I make it spicier?

Add extra diced green chilies or a splash of hot sauce to the mixture before baking for more heat.

→ What toppings work well with this bake?

Try fresh cilantro, sliced jalapeños, avocado, or a dollop of sour cream just before serving for added flavor.

→ Can I freeze the casserole after baking?

Yes, cool completely, wrap tightly, and freeze up to 3 months. Thaw overnight and reheat in the oven until warmed through.

Fajita Chicken Casserole Bake

Savor fajita-seasoned chicken, tender rice, and melty cheese, all baked in one easy Tex-Mex inspired dish.

Preparation Time
15 min
Cooking Time
45 min
Overall Time
60 min
Created By: Lily Chen

Category: Main Dishes

Skill Level: Beginner-Friendly

Cuisine Type: Tex-Mex

Output: 8 Serves (1 large casserole (8 portions))

Dietary Options: ~

Ingredients

→ Main Components

01 4 cups (approximately 600 g) shredded cooked chicken breast
02 2 cups (370 g) uncooked instant white rice
03 1 can (298 g) cream of chicken soup
04 1 cup (240 g) sour cream
05 1 cup (140 g) frozen diced onion and bell pepper blend
06 1 can (284 g) diced tomatoes with chilies, undrained
07 360 ml chicken broth
08 1 packet (32 g) fajita seasoning
09 1 bag (227 g) shredded Mexican-style cheese blend

Steps

Step 01

Lightly grease a 23x33 cm (9x13-inch) ovenproof dish with nonstick cooking spray.

Step 02

In a large mixing bowl, combine shredded chicken, uncooked instant rice, cream of chicken soup, sour cream, frozen diced onion and bell pepper blend, undrained diced tomatoes with chilies, chicken broth, fajita seasoning, and half of the shredded Mexican cheese blend. Mix thoroughly until all ingredients are evenly incorporated.

Step 03

Spread the prepared mixture evenly into the greased baking dish, smoothing the surface with a spatula.

Step 04

Cover the dish with aluminum foil and bake in a preheated oven at 175°C for 35 minutes.

Step 05

Remove foil, sprinkle the remaining cheese evenly over the top, and return to the oven. Bake uncovered for a further 10 minutes, until the cheese is melted and bubbling.

Step 06

Allow the casserole to rest for 5 minutes before serving to ensure easier slicing and optimal texture.

Tips

  1. Letting the casserole rest for 5 minutes helps with slicing and enhances the texture.

Required Tools

  • 23x33 cm (9x13-inch) ovenproof dish
  • Mixing bowl
  • Spatula
  • Aluminum foil
  • Oven
  • Nonstick cooking spray

Allergy Information

Always check each ingredient for allergens, and consult a medical professional if unsure.
  • Contains dairy (cream of chicken soup, sour cream, cheese).
  • May contain gluten (cream of chicken soup, instant rice).

Nutritional Information (per serving)

These details are shared for general guidance and don’t replace professional advice.
  • Calories: 375
  • Fats: 17.5 g
  • Carbohydrates: 40 g
  • Proteins: 21 g