Campbell's Cream of Mushroom Chicken Casserole Recipe: One-Pan Creamy Comfort with Crispy Top

Transforming a simple can of Campbell’s Cream of Mushroom soup into this one-pan chicken casserole was my grandmother’s secret for weeknight comfort—creamy, crispy, and foolproof. The golden, buttery topping seals in warmth while the tender chicken and mushrooms create layers of savory satisfaction.

I’ve adapted her handwritten notes into a recipe that delivers restaurant-quality results without the fuss.

This dish comes together in just 30 minutes of prep and 45 minutes of baking, making it perfect for busy evenings when you still want a meal that feels special. The secret lies in the crispy breadcrumb topping—it’s the difference between a casserole and a showstopper.

My grandmother always said, "A good casserole should taste like love, not like work," and this version delivers exactly that.

By the time it emerges from the oven, you’ll have a bubbling, golden dish with tender chicken, velvety mushroom sauce, and a crunchy topping that holds up to every forkful. The creamy texture coats every bite, while the crispy edges add just enough texture to keep things interesting.

It’s the kind of meal that disappears faster than you can say "second helping."

Serve with a simple green salad or steamed vegetables to round out the plate—this casserole is hearty enough to stand alone but welcoming enough to share. Here’s how to make it the way my grandmother taught me, with a few modern twists for today’s kitchens.

Ingredients for campbell's cream of mushroom chicken casserole

Sixteen ingredients, one unforgettable casserole. Creamy, crispy, and packed with nostalgic comfort.

The chicken needs to be tender but not dry—boneless, skinless breasts cut into even cubes are key. My grandmother always used Perdue chicken for its consistent quality, but any brand works. For the mushrooms, cremini or white hold up best in the oven, but baby bella works too. The onion should be yellow, not red or sweet—they caramelize better. Grab the Campbell's Cream of Mushroom soup from the canned goods aisle, but if you're feeling fancy, homemade mushroom soup takes this to the next level (just simmer mushrooms, onion, garlic, and thyme in broth).

No panko? Regular breadcrumbs toasted in the oven for 5 minutes work in a pinch, but they won't be as crispy. Short on cheddar? Gruyère or Swiss add a nice depth, but cheddar's tang is traditional. The heavy cream can be swapped for half-and-half or whole milk, though the texture won't be as rich. For the flour, all-purpose is best—bread flour makes it too dense. And if you're out of fresh thyme, dried works at one-third the amount, but it's worth grabbing a bunch for this dish.

This casserole reheats beautifully—just cover with foil and bake at 350°F for 15 minutes. It keeps for 4-5 days in the fridge, though I've never had leftovers last that long. For make-ahead prep, assemble the dish (without baking) and refrigerate for up to 24 hours before baking. The topping stays crispy if you bake it straight from the fridge—just add 10 minutes to the cooking time. Freezes well for 3 months too, making it perfect for meal prep.

Step-by-step instructions for creamy mushroom chicken casserole

This one-pan wonder delivers restaurant-quality comfort food with minimal effort.

Cut the 2 lb boneless, skinless chicken breast into 1-inch cubes for even cooking. In a large skillet, melt 0.25 cup of the butter over medium heat. Add the diced yellow onion and sliced 1 lb fresh mushrooms, cooking for 5-6 minutes until softened and golden. Stir in the 3 minced garlic cloves and cook for 30 seconds until fragrant.

Transfer the mushroom mixture to a 9x13-inch baking dish. Season the chicken cubes with 1 tsp salt, 0.5 tsp black pepper, and 1 tsp dried thyme, then add them to the baking dish. Pour the 2 cans Campbell's Cream of Mushroom Soup over everything, stirring gently to combine. Sprinkle the 1.5 cups shredded sharp cheddar cheese evenly over the top.

In a small bowl, mix the 1.5 cups Panko breadcrumbs with the remaining 0.25 cup butter until evenly coated. Spread this mixture evenly over the cheese layer in the baking dish. The breadcrumbs should form a continuous, even layer—this ensures maximum crispiness.

For extra flavor, sprinkle the remaining 2 tbsp all-purpose flour over the breadcrumb topping. This creates a light, golden crust while preventing the crumbs from becoming too dense. Press down gently with the back of a spoon to help the crumbs adhere.

Preheat your oven to 375°F. Bake the casserole uncovered for 30 minutes until the top is golden brown and the breadcrumbs are crispy. If the top browns too quickly, loosely tent with aluminum foil to prevent burning while allowing steam to escape.

For the creamiest texture, remove the casserole from the oven and let it rest for 5 minutes. Then, stir in the 0.5 cup heavy cream directly in the baking dish. Return to the oven for 10-15 minutes until the cream is fully incorporated and the cheese is melted and bubbly.

Let the casserole rest for 10 minutes before serving. This resting period allows the juices to redistribute, ensuring each bite is creamy and flavorful. The top should be crispy while the interior remains tender and luscious.

Garnish with extra black pepper and serve immediately with a side of steamed green beans or crusty bread. The combination of crispy breadcrumb topping, creamy mushroom sauce, and tender chicken creates a comforting dish that's perfect for family dinners or casual gatherings.

Health benefits of these flavors

Protein Powerhouse

This casserole packs a serious protein punch with 2 lbs of chicken breast, delivering about 100 grams of lean protein per serving. That's more than your daily recommended intake in one meal!

Chicken breast is one of the cleanest protein sources—low in saturated fat while providing all nine essential amino acids your body needs for muscle repair and immune function. My grandmother always said protein was the building block of a good meal, and this dish delivers it in every bite. 💪

Creamy Comfort Without Guilt

The heavy cream and cheddar cheese add richness, but the real magic happens with the Campbell's Cream of Mushroom soup base. One serving contains about 10 grams of fat, mostly from the cream and cheese, but the fiber from mushrooms helps balance it out.

I've found that using sharp cheddar instead of mild gives more flavor with less cheese—just 1.5 cups goes a long way. The mushrooms also provide selenium and vitamin D, which support immune health.

Fiber from Mushrooms

Don't overlook the 1 lb of mushrooms in this dish—they're packed with dietary fiber, providing about 3 grams per serving. This helps keep you full longer and supports digestive health.

I like using cremini mushrooms because they hold their shape better during baking, but white mushrooms work just as well. The fiber content also helps balance the dish's overall calorie count while adding earthy flavor. 🍄

Balanced Nutrition

When paired with a simple side salad, this casserole becomes a nearly complete meal. The breadcrumb topping adds carbohydrates for energy, while the chicken provides protein for satiety. The thyme and garlic offer antioxidants, and the cheddar contributes calcium for bone health.

My grandmother always served this with steamed green beans to round out the plate—just 1 cup adds another 4 grams of fiber and vitamin K.

Meal Prep Friendly

One of the best health benefits of this dish is how well it stores. The casserole reheats beautifully while maintaining its creamy texture, making it perfect for meal prep. I often make a double batch on Sundays and portion it into airtight containers for the week.

The crispy topping stays intact even after reheating, so you get that satisfying crunch with every serving. Just add 10 minutes at 350°F to warm through.

Vegetarian Adaptation

For a meatless version, swap the chicken for 1.5 cups of cooked chickpeas or tofu. The chickpeas add fiber and plant-based protein, while firm tofu holds up well in the oven.

I've tested this version and found that adding 1 tbsp soy sauce to the mushroom mixture enhances the umami flavor. The dish still delivers protein and fiber while keeping the creamy, comforting texture everyone loves. 🌱

Frequently asked questions