Saute until golden brown 3 cups thinly sliced onions in 1/4 cup butter until tender. Put onions on top of cracker crumbs. Sprinkle on top of onion 1/2 pound grated sharp cheese.

Mix together 1 1/2 cup milk and 3 beaten eggs. Add 1/2 teaspoon salt and 1/2 teaspoon pepper. Pour this mixture over onions and cheese. Bake at 350 degrees for 1/2 hour.