Broccoli and Rice Casserole Recipe Cream of Mushroom Soup: Baked Comfort With Golden Crust

This baked casserole delivers pure comfort in every bite, combining tender rice, crisp broccoli, and a creamy mushroom sauce under a golden breadcrumb topping.

I developed this recipe to bring that classic homestyle flavor to your table with minimal effort. The result is a satisfying dish that’s as perfect for weeknight dinners as it is for potlucks.

Ingredients for Broccoli and Rice Casserole Recipe Cream of Mushroom Soup

Pantry staples and fresh veggies make this comforting casserole come together effortlessly for four.

The rice base is key here—long-grain white holds up best to baking. Lundberg or Carolina brands are solid grocery store picks. For the broccoli, bright green crowns with tight florets are ideal (avoid the woody stems). The mushroom soup should be Campbell’s or store-brand condensed—don’t dilute it. I always grab Cabot sharp cheddar for that perfect melt (the pre-shredded stuff has anti-caking agents that make it grainy).

Need to make it gluten-free? Swapped breadcrumbs for crushed rice cereal or gluten-free panko. No fresh mushrooms? Extra canned mushroom stems from the soup work fine. For the sauce, whole milk gives the creamiest texture, but 2% works too (skip skim though). The vegetarian Worcestershire—Annie’s makes a good one—adds that umami depth without anchovies.

Assemble it the night before, cover and refrigerate. Bake straight from the fridge—add 10 minutes to the cooking time. Leftovers keep 4-5 days in the fridge and reheat beautifully. The topping stays crisp if you broil for 2 minutes at the end.

Step-by-Step Instructions for Broccoli and Rice Casserole

This method delivers creamy, cheesy comfort with a perfectly crispy panko topping every time.

Step 1: Cook the Rice and Prepare Vegetables

Cook the 1.5 cups Long-Grain White Rice according to package instructions until tender. While it cooks, finely dice the 1 whole Yellow Onion and mince the 3 cloves Garlic Cloves. Chop the 1 cup Fresh Mushrooms into small pieces and cut the 3 cups Fresh Broccoli Crowns into bite-sized florets.

I like to blanch the broccoli in boiling salted water for 2 minutes before shocking it in ice water. This preserves its bright green color and crisp-tender texture in the final dish. Drain the rice and broccoli thoroughly—excess moisture will thin out your casserole.

Step 2: Build the Creamy Base

In a large bowl, combine the cooked rice, broccoli, mushrooms, onion, and garlic. Add the 2 cans Cream of Mushroom Soup, 1.25 cups Whole Milk, 1 tbsp Worcestershire Sauce, 1 tsp Dijon Mustard, 1 tsp Kosher Salt, 0.5 tsp Ground Black Pepper, and 0.5 tsp Dried Thyme. Stir until everything is evenly coated.

The sauce should look thick but pourable. If it seems too stiff, add a splash more milk. Here’s the thing—the cream of mushroom soup already contains salt, so taste before adding more. The Worcestershire and mustard add depth without overpowering the dish.

Step 3: Add Cheese and Transfer to Baking Dish

Stir in 1.5 cups of the 2 cups Sharp Cheddar Cheese until fully melted into the mixture. I reserve 0.5 cup for the topping to ensure a good cheesy crust. Transfer everything to a greased 9×13-inch baking dish and spread it into an even layer.

Real talk: shredding your own cheese from a block makes a huge difference. Pre-shredded cheese contains anti-caking agents that can make your sauce grainy. The sharp cheddar gives that perfect tangy bite that balances the creaminess of the soup base.

Step 4: Add Topping and Bake to Golden Perfection

In a small bowl, melt the 0.5 cup Unsalted Butter and mix it with the 1.5 cups Panko Breadcrumbs and the remaining 0.5 cup Sharp Cheddar Cheese. Sprinkle this evenly over the casserole, pressing down lightly so it adheres.

Bake at 375°F for 25-30 minutes until the top is golden brown and the edges are bubbling. If the panko starts browning too quickly, tent loosely with foil. You want that topping crispy, not burnt. Let it rest for 5 minutes before serving—the sauce will thicken as it cools slightly.

Regional Styles of These Flavors

Midwest Classic

This version leans into the hearty, creamy tradition of Midwestern casseroles. I add 1 tsp smoked paprika to the breadcrumb topping for warmth, and swap panko for crushed Ritz crackers for that nostalgic crunch. The result is pure comfort food that feels like a hug on a plate. 💛

Southern Style

Down South, we love our casseroles with extra richness. I stir in ½ cup mayonnaise with the cheese for ultra-creamy texture, and top with butter-flavored crushed crackers instead of panko. A pinch of cayenne pepper adds just enough kick to balance the creaminess.

West Coast Light

For a lighter take, I use brown rice and low-fat milk, plus swap half the cheddar for part-skim mozzarella. Adding ½ cup Greek yogurt keeps it creamy while cutting calories. The topping gets a sprinkle of slivered almonds for crunch.

New England Twist

This version celebrates local flavors with sharp Vermont cheddar and wild mushrooms like chanterelles or morels. I add 1 tbsp fresh rosemary to the breadcrumb mix for an herbal note that pairs perfectly with the earthy mushrooms.

Texas Heat

Everything’s bigger in Texas, including the flavor. I mix 1 chopped jalapeño into the rice mixture and top with pepper jack cheese along with the cheddar. The breadcrumbs get a boost from 1 tsp chili powder for a smoky, spicy finish. 🌶️

Pacific Northwest

This version highlights fresh, local ingredients. I use wild rice blend and add 1 cup sautéed shiitake mushrooms for depth. The topping combines panko with toasted hazelnuts for a nutty crunch that’s distinctly Northwest.

Frequently Asked Questions