The Absolute Best Broccoli Casserole - cooking recipe

Ingredients

30 ounces frozen chopped broccoli, defrosted and drained
1 medium onion, chopped
1/2 cup butter
2 (10 ounce) cans cream of mushroom soup
2 (6 ounce) containers garlic cheese spread, such as rondele (NOT processed cheese)
1 teaspoon seasoning salt
breadcrumbs, to dust top of casserole

Preparation

Melt the butter in a dutch oven over med heat, add onion and cook till tender, about 6-8 minutes.
Add defrosted broccoli and soups, stir untill well mixed.
Add cheese, stir until melted.
Turn heat to low, and just cook through, about 5 minutes.
Pour into 9\"x 13\" sprayed casserole dish.
Dust top with bread crumbs.
Bake untill bubbly, about 30 minutes.