French Onion Mushroom Casserole
French Onion Mushroom Casserole With a crispy, golden breadcrumb crust on top, French Onion Mushroom Casserole is a hearty, savory dish that combines the rich flavors of caramelized onions, earthy mushrooms, and a creamy, cheesy sauce. This casserole is a delicious, filling side dish or vegetarian main course that combines the finest of two well-loved … Read more