Decadent, over the top and utterly baked, this Baked Cheesy Mushroom Casserole is a beautiful combination of richly cheesy, tender mushroom filling. The buttery breadcrumbs that top it impart an exquisitely creamy, crispy texture; it’s a fabulous side to any main course but a lovely cozy comfort food in its own right. (And just drizzle with a few sprigs of fresh parsley to serve, for a sprinkle of color and flavor!)
Why You’ll Love This Recipe:
Creamy and Cheesy: The cheddar, Parmesan and heavy cream coalesce to create a cheesy, rich casserole that’s as satisfying as could be.
Quick Prep: The recipe is pretty quick to prepare and has just a few ingredients.
Versatile Side Dish: This goes with a lot of different types of main courses, and it’s an excellent choice for family meals or special events.
The Texture Orgy: The crunchy breadcrumb topping balances the creamy sauce with those soft shells in an all-texture ecstasy in your mouth.

Key Ingredients:
Button mushrooms: Button mushrooms provide a mild, tender taste, but cremini, or baby bella, mushrooms work here as well for a little bolder flavor.
Garlic Powder And Thyme: These spices have an earthy flavor that rounds out the richness of the mushrooms in a savory way that pairs really well with the creaminess.
As for Cheese: Cheddar melts nicely to gooey perfection + Parmesan: Parmesan is a great nutty topping, melted or grated.
Heavy Cream: Heavy cream, the sauce base, giving a rich, velvety texture to hold all ingredients together. For something a bit lighter, feel free to use half-and-half.
Breadcrumbs: Mixing breadcrumbs with melted butter lends a crusty finish; you can leave it out for a gluten-free dish or to lower the carbs.
Fresh Parsley: Provides a refreshing, herbaceous flavor and vibrant hue to the finished meal.