Mexican Chicken Casserole with Cornbread Topping

Pro tips

• Use cream cheese at room temperature so it blends smoothly into the filling without lumps.
• Stir the cornbread batter gently after adding eggs and sour cream to avoid overworking, which can make the topping dense.
• Reserve 1 cup of cheese to sprinkle on top of the cornbread batter before baking for extra flavor and golden color.
• Let the casserole rest 5 minutes after baking before serving so the filling sets and scoops cleanly.

Substitutions

• Red enchilada sauce → salsa roja or a mix of tomato sauce and chili powder (adjust to taste)
• Sour cream → Greek yogurt or Mexican crema (1:1 ratio)
• Cornbread mix → homemade cornbread batter from scratch
• Green onions → diced fresh cilantro or sliced red onion (use half the amount)

Storage & make-ahead

Store covered in the refrigerator for up to 3 days. Reheat in a 350°F oven for 15–20 minutes until warmed through, or microwave individual portions for 1–2 minutes.

Equipment

9x13-inch casserole dish · large mixing bowl · measuring cups and spoons

Can I make this casserole ahead of time?

Yes. Assemble the casserole up to 24 hours in advance, cover, and refrigerate. Add 5–10 minutes to baking time if cooking from cold.

What can I substitute for rotisserie chicken?

Use 3 cups shredded cooked chicken from a whole chicken, canned chicken (drained), or leftover turkey. Avoid overcooked varieties that shred into small pieces.

Can I use a different cheese instead of Colby Jack?

Monterey Jack, mild cheddar, or a Mexican cheese blend work well. Avoid low-moisture cheeses like Parmesan, which won't melt smoothly.

How do I know when the cornbread topping is done?

Bake until golden brown and a toothpick inserted into the cornbread layer comes out clean, typically 20–25 minutes.

Can I freeze this casserole?

Freeze unbaked casserole for up to 3 months. Thaw overnight in the refrigerator and bake as directed, adding 5–10 minutes to baking time.