Name: Broccoli Casserole with Cheddar, Mayo, and Panko Breadcrumb Topping Recipe
Prep time: 15 min
Cook time: 45 min
Total time: 1 h
Cuisine: American
Ingredients: 1 (10.5-ounce) can cream of mushroom soup; 1 cup mayonnaise; 1 tablespoon Dijon mustard; ½ small yellow onion, grated; 2 teaspoons onion powder; 2 large eggs, beaten; 6 cups broccoli florets (from 2 large crowns); 1½ cups grated sharp cheddar cheese; 1 cup panko breadcrumbs; 1 tablespoon extra-virgin olive oil

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If you’re hunting for a comfort food classic that feels like a warm hug on a plate, this Broccoli Casserole with Cheddar, Mayo, and Panko Breadcrumb Topping Recipe is exactly what you need. It’s packed with tender broccoli enveloped in a creamy, cheesy sauce, then crowned with a satisfyingly crunchy panko topping that plays perfectly against the smooth, rich filling. Whether it’s a family dinner or a potluck dish, this casserole shines with its irresistible combination of textures and flavors, making every bite a joyful experience.

Ingredients You'll Need

A large white bowl in the center filled with fresh, bright green broccoli florets with rough texture and visible stalks. Surrounding the bowl are smaller white bowls and one black bowl holding different ingredients: shredded orange cheddar cheese with a stringy texture in one bowl, finely chopped white onions in the black bowl, light beige breadcrumbs with a crumbly texture in another, creamy pale yellow mustard in a small bowl, pale pinkish-beige mushroom sauce with a thick smooth texture in a speckled dark grey bowl, smooth off-white mayonnaise in a white bowl, golden yellow olive oil in a small white bowl, a pale orange mixed beaten egg in a white bowl, and a small bowl with light brown garlic powder. All bowls are placed on a white marbled surface. Photo taken with an iphone --ar 4:5 --v 7

Gathering simple pantry staples and fresh broccoli is all it takes to transform everyday ingredients into a truly memorable dish. Each component plays an essential role, from the creamy mayo that binds everything together to the sharp cheddar adding a punch of flavor, and the panko breadcrumbs bringing just the right crunch and golden color on top.

Cream of mushroom soup: Provides a smooth, savory base that keeps the casserole creamy and comforting.
Mayonnaise: Adds a rich tang and helps create a velvety texture.
Dijon mustard: Gives a subtle kick that balances the richness.
Yellow onion (grated): Infuses a gentle sweetness and depth of flavor without overpowering the dish.
Onion powder: Enhances the onion flavor and rounds out the seasoning.
Eggs (beaten): Act as a binder to keep the casserole firm yet tender.
Broccoli florets: The star vegetable, providing freshness, color, and a delightful bite.
Sharp cheddar cheese (grated): Brings a punchy, melty element that’s essential to comfort food success.
Panko breadcrumbs: Create a crispy, golden topping that contrasts perfectly with the creamy base.
Extra-virgin olive oil: Used to toast the breadcrumbs, adding flavor and crispness.

How to Make Broccoli Casserole with Cheddar, Mayo, and Panko Breadcrumb Topping Recipe

Step 1: Preheat and Prepare

Start by heating your oven to 375°F and placing the oven rack in the center. This ensures even cooking and that perfect golden crust on your casserole.

Step 2: Whisk Together the Creamy Mixture

In a large bowl, combine the cream of mushroom soup, mayonnaise, Dijon mustard, grated yellow onion, onion powder, and beaten eggs. Mixing these ingredients thoroughly gives you the luscious sauce that coats the broccoli and melds everything harmoniously.

Step 3: Assemble the Casserole

Toss the fresh broccoli florets into the prepared creamy mixture and then fold in 1 cup of the sharp cheddar cheese. Transfer this luscious blend into a 9 x 13-inch baking dish, spreading it out evenly for consistent baking.

Step 4: Create the Crunchy Topping

Mix the panko breadcrumbs with a tablespoon of extra-virgin olive oil in a small bowl to help them toast beautifully in the oven. Sprinkle the remaining ½ cup of cheddar cheese over the broccoli mixture, then top it all with the oiled panko breadcrumbs, promising a crispy golden finish.

Step 5: Bake Until Bubbly and Golden

Cover the casserole and place it in the oven for 15 minutes to gently warm through. Remove the cover and bake for an additional 30 minutes or until the topping is golden and bubbling. This final step locks in moisture while giving you that irresistible crust everyone will love.

How to Serve Broccoli Casserole with Cheddar, Mayo, and Panko Breadcrumb Topping Recipe

A white oval dish filled with a broccoli casserole showing three clear layers: at the bottom, bright green broccoli florets sitting in a creamy white sauce; the middle layer is melted orange-yellow cheese that covers the broccoli; the top is a golden brown crunchy breadcrumb topping scattered unevenly, with some broccoli visible through it. A silver spoon scoops a portion from the right side, lifting broccoli with sauce and crunchy topping. The dish is set on a white marbled surface with a striped cloth near the bottom right corner. Photo taken with an iphone --ar 4:5 --v 7

Garnishes

Elevate your casserole with a sprinkle of freshly chopped parsley or chives for a burst of color and subtle freshness. A light dusting of smoked paprika can also add a warm, smoky note that complements the cheesy richness beautifully.

Side Dishes

This broccoli casserole pairs wonderfully with simple roasted chicken, grilled tofu, or your favorite baked fish. For a vegetarian feast, add a quinoa salad or a crisp green salad dressed with lemon vinaigrette to balance the creamy texture.

Creative Ways to Present

Serve this Broccoli Casserole with Cheddar, Mayo, and Panko Breadcrumb Topping Recipe in individual ramekins for a charming personal touch, perfect for dinner parties or cozy family meals. Alternatively, scoop it into small bread bowls to make an impressive and hearty presentation that delights everyone at the table.

Make Ahead and Storage

Storing Leftovers

Once cooled, cover the casserole tightly with plastic wrap or foil and store it in the refrigerator. It will keep well for up to 3 days, making for an easy and delicious next-day meal.

Freezing

This casserole freezes beautifully. Prepare it fully but skip baking; wrap tightly and freeze for up to 2 months. When you’re ready, thaw overnight in the fridge and bake as directed, adding extra baking time if needed until heated through and bubbly.

Reheating

Reheat leftovers in the oven at 350°F to maintain the crispy panko topping, covering loosely with foil to prevent over-browning. Microwave reheating is possible but may soften the crunchy crust—use the oven for the best texture.

FAQs

Can I use fresh mushrooms instead of cream of mushroom soup?

You can, but it will require extra steps to create a creamy sauce from scratch. The canned soup simplifies the process and adds that classic flavor that blends perfectly with the other ingredients.

Is it possible to make this casserole dairy-free?

Yes! Substitute dairy cheese with your favorite vegan cheese and use a dairy-free mayo. Just keep in mind the flavor and texture will be slightly different but still delicious.

Can I use frozen broccoli instead of fresh?

Using frozen broccoli is okay, but be sure to thaw and drain thoroughly to avoid excess moisture that might make the casserole watery.

How do I make the panko topping extra crispy?

Mix the panko with olive oil before sprinkling and give it a light toast in a dry skillet before adding on top; this extra step enhances crunch and flavor.

Is this casserole suitable for meal prepping?

Absolutely! This recipe is fantastic for meal prep since it stores well and can be reheated easily, making it a convenient and comforting option for busy weeknights.

Final Thoughts

Nothing quite beats the cozy, cheesy comfort of a well-made broccoli casserole, and this Broccoli Casserole with Cheddar, Mayo, and Panko Breadcrumb Topping Recipe is bound to become one of your go-tos. Simple ingredients combine in perfect harmony to deliver layers of creamy, crunchy, and flavorful bites that bring joy to every meal. I can’t wait for you to make it and see just how quickly it becomes a favorite at your table!

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Broccoli Casserole with Cheddar, Mayo, and Panko Breadcrumb Topping Recipe

Ingredients You'll Need