4 to 6 med. yellow squash
1 med. onion
1/2 tsp. salt
1/4 tsp. pepper
15 to 20 Ritz crackers, crushed
1/2 stick butter
2 eggs, separated
1 c. grated cheese (or Velveeta, in sm. pieces)

Slice squash and onion into small pieces. Cook until tender, about 20 minutes. Strain. Mash well with a fork. Drain off excess liquid. Add butter and cheese, blending until melted. Add crushed crackers, salt, pepper and egg yolks. Mix well. Fold in 2 stiffly beaten egg whites. Quickly turn into greased casserole dish. Bake at 350 degrees for 40 minutes.