1 tbsp. butter
1 tbsp. flour
1 scant tsp. onion
1/3 c. milk
1/3 pkg. chopped spinach, cooked
1 egg, separated
1/2 tsp. salt

Melt butter, add flour and grated onion. Add milk and salt, and heat until mixture thickens. Add spinach and egg yolk. Then fold in beaten egg white. Put in a greased baking dish. Bake about 1/2 hour in a moderate oven. Yield: 2 or 3 servings.