4 tbsp. butter
1 tbsp. minced onion
1 tbsp. green pepper
1 tbsp. minced celery
3 tbsp. flour
1/2 tsp. salt
1/8 tsp. pepper
1 c. milk
4 eggs, separated
2 c. cooked spinach or broccoli, drained

Melt butter. Add onion, green pepper and celery. Cook until soft, but not brown. Blend in flour, salt and pepper; add milk slowly. Cook (medium-low), stirring until thickened. Beat egg yolks until thick and lemon colored, stir slowly into white sauce. Add spinach or broccoli. Beat egg whites until stiff, fold in. Turn into buttered 1 quart casserole or 8 x 8 inch pan. Set in pan of hot water. Bake at 350 degrees for 50 minutes or until dry on top.