Squash Casserole Recipe With Cream Of Chicken Soup: Cheesy Baked Comfort With A Crunchy Top

This baked squash casserole delivers pure comfort in every bite, with a creamy interior and golden, crunchy topping that satisfies like a warm hug on a chilly evening.

The cream of chicken soup creates a velvety base that binds the squash perfectly, while sharp cheddar adds depth. I developed this after too many bland vegetable sides made their way to my table.

What emerges from the oven is a dish with layers of tender squash, rich sauce, and a buttery breadcrumb crust that stays crisp even after baking. It’s the kind of meal that turns simple ingredients into something worth celebrating.

Perfect for Sunday family dinners or weeknight comfort. Here’s how to make it right.

Ingredients for Squash Casserole Recipe with Cream of Chicken Soup

Pantry staples and fresh produce come together for this cozy baked dish.

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The squash is the star here. Yellow squash works best—zucchini can get too watery. Look for firm, shiny skins at Whole Foods or your local farmers market. The cream of chicken soup base is non-negotiable for that velvety texture (I use Campbell’s, but store brand is fine). For the cheddar, block cheese shredded at home melts better than pre-shredded, which has anti-caking agents.

No cream of chicken? Cream of mushroom works in a pinch, but the flavor shifts. For a vegetarian version, cream of potato soup plus a splash of chicken-style broth gets you close. Sour cream can be swapped for Greek yogurt (same tang, less fat). Out of panko? Crushed saltines or Ritz crackers make a great substitute—just as crunchy.

Assemble and refrigerate overnight if you want to prep ahead. Bake straight from the fridge, adding 10-15 minutes to the time. Leftovers keep 4-5 days in the fridge and reheat beautifully. The topping stays crisp if you broil for the last 2 minutes.

Step-by-Step Instructions for Squash Casserole

Here’s my method for this comforting dish—simple layers, rich flavors, crispy finish.

Step 1: Sauté Aromatics and Prep the Squash

Dice the yellow onion and mince the 2 cloves garlic cloves. Heat a skillet over medium heat and sauté the onion for 3-4 minutes until translucent. Add the garlic and cook for an additional 30 seconds until fragrant.

While the aromatics cook, thinly slice the 2 lb yellow squash into ¼-inch rounds. I use a mandoline for uniform slices, but a sharp knife works too. Transfer the squash to a colander, sprinkle with the 1 tsp salt, and let it drain for 10 minutes to remove excess moisture—this prevents a watery casserole.

Step 2: Create the Creamy Cheese Sauce

In a large bowl, whisk together the 1 can cream of chicken soup, 0.5 cup sour cream, 2 tbsp all-purpose flour, 0.5 tsp black pepper, and 0.5 tsp paprika until smooth. Fold in 1½ cups of the 2 cups sharp cheddar cheese, reserving the rest for topping.

Add the sautéed onions and garlic to the sauce, stirring to combine. The sauce should be thick but pourable. If it seems too stiff, let it sit for 5 minutes—the flour will hydrate and loosen it slightly. This base is what makes the dish so rich and comforting.

Step 3: Layer and Assemble the Casserole

Preheat your oven to 375°F. In a greased 9×13-inch baking dish, start with a layer of half the squash slices, slightly overlapping. Pour half the cheese sauce over the top, spreading it evenly. Repeat with the remaining squash and sauce.

In a small bowl, mix the 1.5 cups panko breadcrumbs with the 1 whole large egg (lightly beaten) until the crumbs are evenly moistened. This binding step ensures the topping stays crispy and doesn’t scatter. Sprinkle the mixture over the casserole, then top with the remaining ½ cup sharp cheddar cheese.

Step 4: Bake to Golden Perfection

Drizzle the 0.5 cup unsalted butter (melted) evenly over the panko and cheese topping. This adds richness and helps the topping brown beautifully. Bake uncovered for 35-40 minutes until the casserole is bubbly around the edges and the topping is deep golden brown.

Let it rest for 10 minutes before serving. The rest time allows the layers to set, making it easier to slice and ensuring every bite has that perfect balance of creamy squash and crunchy topping. The aroma alone is pure comfort.

Make-Ahead Tips for This squash casserole recipe with cream of chicken soup

Overnight Assembly

Assemble the entire casserole the night before, cover tightly with plastic wrap, and refrigerate. The flavors meld beautifully overnight—I’ve tested this with home cooks who swear it tastes even better. Bake straight from the fridge, adding 10-15 minutes to the cooking time. 💡

Panko Prep Ahead

Mix the panko topping separately and store in an airtight container at room temperature. In the morning, sprinkle it over the casserole just before baking. This keeps the crumbs crisp and prevents them from absorbing moisture from the squash layers.

Freezer-Friendly Option

This dish freezes beautifully for up to 3 months. Assemble in a freezer-safe dish, wrap tightly with foil and plastic, and freeze before baking. Thaw overnight in the fridge, then bake as directed, adding 5-10 minutes to the time.

Reheating Leftovers

Store leftovers in the fridge for 4-5 days. Reheat individual portions in the microwave covered with a damp paper towel for 1-2 minutes. For a crispy topping, broil for the last 2 minutes in the oven. ❄️

Partial Prep Shortcut

Slice the squash and sauté the onions ahead, storing them separately in the fridge. The next day, assemble and bake as usual. This saves 20-30 minutes of active prep time while maintaining the dish’s freshness.

Doubling for Crowds

Easily double the recipe for gatherings. Use two 9×13-inch dishes and bake simultaneously, rotating the pans halfway through for even browning. This is my go-to for Sunday family dinners—everyone leaves happy and full.

Frequently Asked Questions