Instructions: Heat oven to 350 degrees. Toast bread; butter both sides. Cook and stir meat, onion, celery, prepared mustard, and salt until meat is brown and onion is tender. Alternate layers of toast, meat mixture, and cheese in a greased 9x9x2-inch baking pan. Mix remaining ingredients; pour over layers in pan. Can be sprinkled with paprika. Bake uncovered for 30 to 35 minutes.

4 to 6 servings.

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