Broccoli Mushroom Casserole

As a mushroom growing enthusiast, one of my favorite recipes to make is broccoli mushroom casserole. This hearty and flavorful dish combines the earthy richness of mushrooms with the vibrant crunch of broccoli, all baked to perfection in a creamy, cheesy sauce. It’s a dish that never fails to impress both family and friends at gatherings and potlucks.

Ingredients for Broccoli Mushroom Casserole

Before diving into the cooking process, let’s take a look at the key ingredients that make this casserole so delicious:

  • Broccoli florets
  • Fresh mushrooms (cremini or button mushrooms work well)
  • Onion
  • Garlic
  • Cheddar cheese
  • Butter
  • All-purpose flour
  • Whole milk
  • Chicken or vegetable broth
  • Bread crumbs
  • Olive oil
  • Salt and pepper

Preparing the Casserole

To start, I sauté the mushrooms, onions, and garlic in a skillet until they develop a beautiful aroma and their flavors meld together. Then, I blanch the broccoli florets to retain their vibrant green color and crisp texture. For the creamy sauce, I prepare a roux with butter and flour, then slowly whisk in the milk and broth, creating a velvety base for the casserole. After combining the sautéed vegetables, broccoli, and sauce, I fold in the sharp cheddar cheese, adding a layer of richness and depth of flavor to the dish.

Baking and Serving

Once the ingredients are combined, I transfer the mixture to a baking dish, top it with a sprinkle of bread crumbs for crunch, and drizzle a bit of olive oil for a golden finish. The casserole goes into the oven, and as it bakes, the kitchen fills with the irresistible aroma of bubbling cheese, warm spices, and fresh vegetables. The casserole is ready when the top turns golden brown, and the edges are bubbling.

My Thoughts on this Dish

Broccoli mushroom casserole is not just a dish; it’s a symphony of flavors and textures. The earthy umami from the mushrooms, the sweetness of the caramelized onions, the slight bitterness of broccoli, and the comforting creaminess of the cheese sauce all come together in perfect harmony. It’s a versatile dish that can serve as a main course for vegetarians or a satisfying side dish for any meal.


Whether you’re a seasoned cook or just starting out in the kitchen, broccoli mushroom casserole is a dish that’s sure to become a staple in your recipe collection. Its simplicity, versatility, and heartiness make it a winner for any occasion. So, go ahead, gather the ingredients, and let the aroma of this delightful casserole fill your kitchen with warmth and comfort.