Cheese Omelet - cooking recipe

Ingredients

5 pieces bread, buttered on both sides
1/2 lb. Swiss cheese
4 eggs, well beaten
1/2 tsp. dry mustard
dash of pepper
1/2 lb. Cheddar cheese
2 c. milk
1/2 tsp. salt
1 can mushrooms

Preparation

Place bread in a 9 x 13-inch pan.
Grate the cheeses; mix together and sprinkle on bread.
Mix together the eggs, milk, dry mustard, salt and pepper.
Beat well.
Pour over cheese.
Sprinkle mushrooms over top.
Cover and refrigerate overnight.
Remove from refrigerator 1 hour before baking.
Bake at 350\u00b0 for 1 hour.