Southern Chicken Casserole Recipe: Cheesy Bake with Buttery Biscuit Topping

This Southern-inspired casserole brings comfort food to a new level with its rich, creamy filling and golden biscuit topping. The combination of tender chicken, melted cheese, and buttery layers creates a dish that’s both hearty and satisfying.

What makes this bake special is its simplicity. The filling comes together quickly with shredded chicken, cream of chicken soup, and sour cream, while the biscuit topping adds a flaky, buttery finish. It’s a foolproof method for a meal that feels like home.

You’ll end up with a bubbling, golden-brown casserole that’s creamy on the inside and crisp on top. The flavors meld together beautifully, making it a crowd-pleaser for any occasion.

Serve it hot, straight from the oven, for the best experience. Here’s how to make it.

Ingredients for Southern Chicken Casserole

Shredded chicken, creamy soup, and flaky biscuits make this casserole a comforting classic.

The chicken is the foundation—rotisserie saves time, but poaching your own in the chicken broth adds depth. For the cheddar, block cheese shredded fresh melts better than pre-shredded (those anti-caking agents ruin the texture). Pillsbury biscuits are the go-to for the topping, but any buttermilk biscuit dough works. Grab the full-fat sour cream; the low-fat versions can separate.

Out of cream of chicken soup? Cream of mushroom works in a pinch (the flavor difference is subtle). No cheddar? Monterey Jack adds a milder, creamier touch. The onion can be white or sweet if that’s what you’ve got. For extra richness, swap half the broth for heavy cream. Fresh thyme at double the amount replaces dried beautifully.

Assemble the casserole just before baking—soggy biscuits are the enemy. Leftovers keep 3-4 days in the fridge, reheat covered with foil. Freezes for 2 months (thaw overnight before reheating). The biscuit topping is best fresh, so add it right before baking if prepping ahead.

Step-by-Step Instructions for Southern Chicken Casserole

Here’s the method. Straightforward, tested, works every time.

Step 1: Sauté Aromatics and Create the Sauce Base

Finely dice the ½ whole Yellow Onion and mince the 2 cloves Garlic Cloves. Heat a large skillet over medium heat and add 1 tablespoon of the ½ cup Unsalted Butter. When the butter melts, add the diced onion and cook for 5-6 minutes until soft and translucent.

Stir in the minced garlic and cook for 30 seconds until fragrant. Sprinkle in the 2 tbsp All-Purpose Flour and whisk constantly for 1 minute to create a light roux. This thickens the sauce and prevents lumps. The mixture should turn a pale golden color but not brown.

Gradually whisk in the ½ cup Chicken Broth and 1 can Cream of Chicken Soup until smooth. Bring to a gentle simmer and cook for 2-3 minutes until the sauce begins to thicken slightly.

Step 2: Combine Filling Ingredients

Reduce heat to low and stir in the 1 cup Sour Cream, ½ tsp Salt, ¼ tsp Black Pepper, ½ tsp Dried Thyme, and ¼ tsp Paprika. Mix until all spices are fully incorporated and the sauce is creamy and uniform.

Add the 2 cups Cooked Chicken Breast (shredded) and 1½ cups of the 2 cups Shredded Cheddar Cheese to the sauce. Stir until the cheese melts completely and the chicken is evenly coated. The mixture should be thick and rich, with the chicken fully integrated. Taste and adjust seasoning if needed.

Step 3: Assemble and Top the Casserole

Transfer the chicken mixture to a greased 9×13-inch baking dish and spread it evenly with a spatula. Sprinkle the remaining ½ cup Shredded Cheddar Cheese evenly over the top, ensuring complete coverage.

Separate the 1 can Buttermilk Biscuit Dough into individual biscuits and arrange them on top of the casserole in a single layer, slightly overlapping if necessary. Press down gently so they adhere to the cheese mixture below.

Step 4: Bake to Golden Perfection

Melt the remaining ½ cup Unsalted Butter and drizzle it evenly over the biscuit topping. This adds richness and promotes even browning. Place the casserole in a preheated 375°F oven and bake for 25-30 minutes.

Bake until the biscuits are golden brown and the filling is bubbling at the edges. The cheese should be fully melted and the biscuits cooked through. If the topping browns too quickly, tent loosely with foil for the remaining baking time.

Remove from the oven and let rest for 5 minutes before serving. This allows the filling to set slightly, making it easier to portion. The casserole should be creamy, cheesy, and topped with buttery, golden biscuits.

Make-Ahead Tips for Leftovers

Prep the Filling

You can assemble the chicken mixture 1 day ahead—just sauté the aromatics, make the sauce, and combine with chicken and cheese. Store in an airtight container in the fridge. The flavors actually deepen overnight as the spices meld together.

Biscuit Topping Trick

Keep the biscuit dough in the fridge until you’re ready to bake. If you add it to the casserole too early, it’ll absorb moisture and turn soggy. I place the dough on top just before baking to maintain that flaky texture.

Freezing for Later

This casserole freezes beautifully for up to 2 months. Assemble the entire dish (without baking), wrap tightly with plastic wrap and foil, and freeze. Thaw overnight in the fridge before baking as directed. 💡

Reheating Leftovers

Cover individual portions with foil and warm in a 350°F oven for 15-20 minutes. The biscuit topping won’t be as crisp, but the creamy filling reheats perfectly. Avoid microwaving—it can make the biscuits gummy.

Make-Ahead Assembly

For same-day baking, assemble the entire casserole (including biscuits) up to 2 hours ahead. Cover loosely with foil and refrigerate. Bake as directed, adding 5-10 minutes if needed since it’ll start cold.

Pro Tip

If prepping for a crowd, make two smaller casseroles instead of one large one. This allows you to bake one immediately and freeze the other for later. I use 8×8-inch dishes for perfect portions. ❄️

Frequently Asked Questions