Place in shallow oblong casserole, in 350 degree oven for 15 minutes to toast lightly:

6 slices bread, buttered with butter

Combine in skillet and saute until lightly brown:

1/2 to 3/4 lb. ground beef
1/3 c. chopped onion
1/4 c. chopped celery

Remove from heat and season with:

Salt and pepper to taste
1 1/2 tbsp. prepared mustard

Spoon meat mixture over bread slices in casserole. Top with:

1 1/2 c. shredded American cheese
6 slices bread NOT toasted

Beat and pour over sandwiches:

3 eggs
1 1/2 c. milk

Bake at 350 degrees for 45 minutes or until milk is absorbed and sandwiches are browned. Cut apart and serve. Serves 6.