8 slices bread
8 oz. sharp process American cheese, sliced
4 eggs
2 1/2 c. milk
1 tbsp. chopped onion
1/2 tsp. prepared mustard
1 1/2 tsp. salt

Advance Preparation: Trim crusts from 5 slices of bread; cut in half diagonally. Place trimmings and 3 slices untrimmed bread in 9 x 9 x 2 inch baking dish. Top with cheese. Arrange bread triangles atop cheese. Beat eggs; blend in remaining ingredients and dash of pepper. Pour over bread. Cover; chill 4-24 hours.

Before Serving: Bake at 325 degrees until knife inserted off center comes out clean, about 1 hour. Let stand 5 minutes. Serves 6.