Another Broccoli And Cauliflower Casserole - cooking recipe

Ingredients

1/2 cup butter
1 onion, small chopped
1/2 cup mushroom, any kind
1/4 cup all-purpose flour
1 1/2 cups whole milk
1 cup sour cream
1 cup gruyere cheese, shredded
1 teaspoon salt
1 teaspoon ground black pepper
6 cups broccoli florets, fresh and steamed crisp-tender
4 cups cauliflower florets, fresh and steamed until crisp-tender
1 cup panko breadcrumbs
2 tablespoons butter, melted

Preparation

Preheat oven to 350.
Lightly grease an 11x7 inch baking dish.
In large skillet, melt butter over medium heat.
Add onion and mushrooms and cook for 5 minutes.
Stir in flour and cook for 2 minutes stirring constantly.
Gradually stir in milk and cook for 2-3 minutes, or until mixture thickens.
Stir in sour cream, cheese, salt, and pepper, stirring until smooth.
Stir in broccoli and cauliflower and spoon into prepared baking dish.
Bake for 25 minutes.
In small bowl, combine panko and melted butter.
Sprinkle evenly over casserole,.
Bake for 15 to 20 minutes or until breadcrumbs are golden brown and casserole is hot and bubbly.
Serve immediately.