2 lb. yellow squash, sliced
1 med. onion, chopped
butter
1 egg, beaten
1/4 c. milk
1 c. grated sharp Cheddar cheese
Ritz crackers

Cook squash and onion in small amount of salted water; drain. Mash, add 1/3 stick butter. Add egg, milk and cheese to squash. Place in casserole. Top with Ritz crackers, dot with butter. Bake at 350 degrees for 30 minutes or until crackers are brown and mixture is bubbly.