Chicken Fajita Casserole

Let’s take a break from the heavy topics and talk about food!

This Chicken Fajita Casserole is not only easy but completely customizable. The recipe fills a 13×9 dish, but you can easily cut it in half if you’re cooking for fewer people. I made a few adjustments along the way, and I’ll share exactly what I used—you can tweak it to fit your preferences!

Now, let’s talk about the real challenge—my husband is not a fan of Mexican food. Well, let me clarify—he’s not a fan when I cook it. Meanwhile, everyone else in my house loves it, so I sneak it in when I can. This week, I focused on shelf-cooking, trying to use up what I already had before restocking. With grocery prices skyrocketing, I’m constantly torn between stocking up and making do with what’s on hand.

Since I already had all the ingredients for this dish, it was the perfect choice. Plus, it comes together quickly! I even made some homemade tortilla chips from leftover tortillas. I simply cut them into triangles, tossed them with oil, chili powder, and sea salt, then baked them at 350°F for about 5 minutes. You could also serve this casserole with store-bought tortilla chips or rice.

Ingredients

Seasoning Blend for Chicken & Veggies

• 2 1/2 tsp. chili powder
• 1 tsp. cumin
• 1 tsp. sea salt
• 1 tsp. black pepper
• 1/2 tsp. paprika
• 1/4 tsp. garlic powder
• 1/4 tsp. onion powder
• 1/4 tsp. oregano
• 1/4 tsp. red pepper flakes

(Should I admit now that I never measure anything? Ever? I’m spitballing these measurements just for you!)

Chicken Fajita Casserole Ingredients

• 1 bag frozen chicken fajita strips (thawed & chopped)
• 1 orange bell pepper (sliced)
• 1 yellow bell pepper (sliced)
• 1 zucchini (sliced)
• Fresh portobello mushrooms (sliced)
• 1 small onion (sliced)
• 2 cloves garlic (minced)
• 1 stick butter (or oil)
• 1 block cream cheese
• 1/2 cup sour cream
• Shredded cheddar cheese

Step 1: Marinate the Chicken & Veggies

I cut my pre-cooked chicken fajita strips into bite-sized pieces and tossed them into a large bowl. Then, I added the sliced bell peppers, zucchini, mushrooms, onion, and garlic.

Next, I sprinkled the seasoning blend over the top, put the lid on the bowl, and shook it up until everything was well coated. I let it marinate in the fridge for about 30 minutes—next time, I’ll let it sit for at least an hour to really soak up the flavors.

Step 2: Sauté Everything

I heated a cast iron skillet over medium heat, melted 1/2 stick of butter, and added my chicken and veggie mixture. I let it cook slowly, stirring occasionally.

To help tenderize the veggies, I added another 1/2 stick of butter and covered the pan with a cookie sheet. Since the chicken was already pre-cooked, I just focused on getting that perfect sautéed texture for the veggies.

Step 3: Assemble & Bake

• Preheat the oven to 350°F.
• Grease a 13×9 baking dish and spread the cooked chicken and veggies evenly across the bottom.
• In a separate bowl, mix 1/2 cup sour cream with 1 block of cream cheese. Spread this creamy mixture over the top of the chicken and veggies.
• Sprinkle shredded cheddar cheese on top.
• Bake for 20 minutes until everything is heated through and the cheese is melted and bubbly.

Let it sit for a couple of minutes before serving—this helps the flavors settle and keeps the juices from running everywhere.

Final Thoughts

This casserole was a hit! Even Bart didn’t complain (too much). It’s packed with flavor, easy to make, and great for using up what’s already in your kitchen.

If you try it, let me know how you tweak it to fit your family’s taste! And if you’re into meal prepping, consider making an extra batch to freeze for later—it reheats beautifully.

Enjoy!

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