Ingredients
Equipment
Method
Step-by-Step Instructions
- Preheat your oven to 350°F (175°C) and gather a 9x9 inch baking dish.
- Melt 2 tablespoons of butter in a large skillet over medium heat. Add finely chopped onions and sauté until translucent, about 5 minutes.
- Add 8 cups of sliced mushrooms to the skillet and cook for 8-10 minutes, stirring frequently until softened and golden brown.
- Lower the heat, stir in 1 cup of heavy cream, and season with salt and pepper. Cook for an additional 2-3 minutes.
- Spoon the mixture into the prepared baking dish, spreading it out evenly.
- Sprinkle 2 cups of shredded Gruyère cheese over the top.
- Bake the casserole in the oven for about 20-25 minutes until cheese is bubbly and golden brown.
- Remove from the oven and let it cool for about 5 minutes before serving.
Nutrition
Notes
Ensure mushrooms are sautéed thoroughly to prevent excess moisture. Allow the casserole to cool slightly for cleaner slices.
