This spinach and mushroom casserole is a healthy and delicious way to enjoy leafy greens and earthy mushrooms. It's made with sautéed spinach, mushrooms, onions, and garlic, creating a flavorful and nutritious filling. The spinach is wilted until tender and combined with the sautéed mushrooms, onions, and garlic. A creamy sauce made with milk, flour, and Parmesan cheese is poured over the spinach and mushroom mixture, adding a rich and creamy texture. Topped with a sprinkle of breadcrumbs and baked until golden and crispy, this casserole is a perfect side dish or a light vegetarian main course.
