Squash Casserole - cooking recipe

Ingredients

6 medium yellow squash
1 egg, beaten
1 Tbsp. finely chopped onion
1/2 stick butter
1 tsp. salt
sprinkle of pepper

Preparation

Boil squash until tender.
Drain and mash.
Add other ingredients.
Place in a greased casserole; top with bread crumbs. Bake at 350\u00b0 until crumbs are browned.