2Combine soup,mayonaisse,eggs, sharp cheese, and onion. Fold in broccoli.
Place mixture in 2 1/2 quart greased dish.
3In a pan, melt the butter on low heat. Stir in bread crumbs until coated. Continue to stir bread crumbs over low heat for about a minute.
Remove from heat and stir in two tablespoons of the sharp cheese.
Top casserole with buttered bread crumb and cheese mixture.