Green Rice Casserole - cooking recipe

Ingredients

4 c. cooked rice
2 c. grated Cheddar cheese
1 12/ c. finely chopped parsley
2 Tbsp. chopped onion
6 eggs, separated
butter
salt and pepper to taste
3 Tbsp. flour
1 1/2 c. milk
2 small cans mushrooms

Preparation

Combine rice, cheese, parsley, onion, egg yolks and 1/2 cup melted butter in mixing bowl.
Season with salt and pepper.
Fold in stiffly beaten egg whites.
Pour into greased 2-quart baking dish.
Bake in preheated 350\u00b0 oven for 30 to 45 minutes.
Melt 2 tablespoons butter in saucepan; stir in flour to make a smooth paste.
Add milk gradually, stirring until well.