Paula Deen's Chicken Casserole Recipe: Celery-Crusted Comfort with Buttery Mushroom Layers

Paula Deen's chicken casserole recipe delivers the kind of creamy, cheesy comfort that feels like a warm embrace after a long day. 💛 I've recreated her signature layers—crispy celery crust, tender chicken, and buttery mushroom filling—using time-tested Southern techniques that still feel modern in today's kitchen.

The secret lies in the roux, which builds rich, velvety flavor without overpowering the dish.

What makes this recipe special is how approachable it is for home cooks while delivering restaurant-quality results. You'll start with a classic buttery roux, then layer tender chicken, sautéed mushrooms, and a crispy celery topping that adds texture and depth.

The baking time is generous—about 45 minutes—but it's hands-off, letting the oven work its magic while you prep the rest of the meal.

By the time it emerges from the oven, you'll have golden, bubbling layers of creamy mushroom filling topped with a crispy celery crust that holds together beautifully. The flavors are rich but balanced—savory chicken, earthy mushrooms, and that buttery, slightly crispy crust that Paula Deen makes famous.

This is the kind of dish that transforms a simple weeknight into a special occasion.

Perfect for family dinners, potlucks, or when you want to impress without stressing. The recipe scales easily, so you can make it for two or feed a crowd. Here's everything you need to recreate this Southern classic in your own kitchen.

Ingredients for paula deen chicken casserole

Buttery roux, crispy celery crust, and creamy mushroom layers—this Southern classic needs just 15 ingredients.

The butter and flour roux is where the magic happens. Use European-style butter—it has higher fat content, which gives that rich, velvety texture Paula Deen is known for. I grab mine from Whole Foods or Trader Joe's because it's consistently high quality. For the mushrooms, cremini or white work best—their meaty texture holds up to the long baking time. If you're using wild mushrooms, make sure they're fresh and clean them thoroughly. The celery should be crisp and vibrant—no wilted stalks—and the yellow onion should be firm with no signs of sprouting. Garlic cloves should be plump and firm, not shriveled or soft.

No heavy cream? Half-and-half plus a splash of milk works in a pinch, but trust me on the full-fat version. Running short on cheddar? Monterey Jack or pepper jack add different flavors but still melt beautifully. For the celery crust, panko breadcrumbs give that extra crunch, but regular breadcrumbs work fine if that's what you've got. The chicken broth can be homemade or store-bought—just check the sodium content. If you're using dried thyme, make sure it's not ancient; Penzeys or Spicewalla have great quality. For the Parmesan, grate it yourself—pre-grated tastes like sawdust in comparison.

This casserole tastes even better the next day, so make it ahead if you can. Store leftovers in an airtight container in the fridge for up to 4 days. To reheat, cover with foil and bake at 350°F for 20-25 minutes until bubbly. Freezes beautifully too—portion it into single-serving containers for easy lunches. The celery crust gets crispier when reheated, so it's worth the extra minute in the oven.

Step-by-step instructions for celery-crusted chicken casserole

Here's how to build Paula Deen's signature comfort dish with crispy crust and creamy layers.

Cut the 2.5 lb boneless, skinless chicken breasts into 1-inch bite-sized pieces—this ensures even cooking and tender bites. In a large skillet, melt 0.25 cup of the unsalted butter over medium-high heat. Add the chicken pieces in a single layer and cook for 5-6 minutes until lightly browned on all sides. You'll see them release easily from the pan—that's your cue to remove them and set aside.

In the same skillet, add the remaining 0.5 cup unsalted butter. Toss in the 1.5 lb sliced mushrooms and cook for 6-7 minutes until they release their moisture and begin to brown. Stir in the 1 whole yellow onion (diced) and 3 whole celery stalks (finely diced) and cook for another 4-5 minutes until softened. Add the 4 minced garlic cloves and cook for 30 seconds until fragrant—this builds the flavor base for your casserole.

Lower the heat to medium and sprinkle 0.5 cup all-purpose flour over the mushroom mixture. Stir constantly for 1-2 minutes until the flour is fully incorporated and the mixture thickens slightly. This creates a roux that will thicken your sauce beautifully.

Gradually pour in the 1.5 cups chicken broth while stirring continuously. Bring to a gentle simmer and let it cook for 3-4 minutes until slightly thickened. Reduce heat to low and stir in the 1 cup heavy cream, 2 cups shredded sharp cheddar cheese, 1 tsp dried thyme, 0.5 tsp ground black pepper, and 1.5 tsp salt. Stir until the cheese melts completely and the sauce is smooth and velvety. Return the cooked chicken to the skillet and toss to coat everything in the sauce. Remove from heat and set aside.

Preheat your oven to 375°F. In a medium bowl, mix together the 0.5 cup breadcrumbs, 0.25 cup freshly grated parmesan cheese, 0.25 cup of the remaining unsalted butter (softened), 0.5 tsp ground black pepper, and 0.5 tsp salt. This forms your crispy topping—don't skip the butter, it's what makes it golden and crunchy.

Transfer the chicken and mushroom mixture to a 9x13-inch baking dish. Spread it evenly in the bottom of the dish. Sprinkle the remaining 1 cup shredded sharp cheddar cheese evenly over the top. Then scatter the breadcrumb mixture evenly over the cheese, pressing down gently with your fingers to create an even, compact crust.

Place the casserole in the preheated oven and bake for 30-35 minutes until the top is deep golden brown and the edges are bubbling. Here's the thing—your oven might run hot, so start checking at the 25-minute mark. The cheese should be melted and bubbly, with the crust looking crispy and inviting.

Remove from the oven and let it rest for 5-10 minutes before serving. This resting time allows the layers to set slightly, making it easier to slice and serve. The result should be tender chicken, creamy mushroom sauce, and a crispy cheesy crust that'll have everyone reaching for seconds.

Perfect pairings for paula deen chicken casserole

Classic Southern Sides

This casserole pairs beautifully with creamy coleslaw made with a tangy buttermilk dressing—about 2 cups shredded cabbage tossed with ½ cup mayonnaise, 2 tbsp vinegar, and 1 tsp sugar.

The cool crunch cuts through the richness perfectly. I always make a big batch because it disappears fast. 🥬

Crusty Bread Pairing

Serve with homemade cornbread or crusty Italian bread to soak up every last bit of creamy sauce. For extra indulgence, brush the bread with melted butter and sprinkle with coarse salt before baking. A warm loaf makes this casserole feel like a true Southern feast.

Vegetable Balance

Add a simple green salad with mixed greens, cherry tomatoes, and crumbled feta for a light contrast. Toss with lemon-olive oil dressing to keep it fresh.

The acidity balances the richness of the casserole beautifully. I like to serve it on the side for those who want something lighter.

Drink Recommendations

A sweet iced tea with lemon slices is the classic Southern pairing—brewed strong and served over ice. For something lighter, try a sparkling lemonade with a hint of mint. Both drinks complement the buttery, cheesy flavors without overpowering them. 🍹

Cheesy Additions

For extra decadence, serve with warm dinner rolls topped with garlic butter. The garlic enhances the savory notes in the casserole while adding a buttery richness. I always keep a batch in the freezer for quick reheating on busy nights.

Frequently asked questions