Ingredients:

  Amount  Measure       Ingredient -- Preparation Method
--------  ------------  --------------------------------
  10      slices        white bread
   6                    egg
   3      cups          milk
   1      teaspoon      dry mustard
   1      teaspoon      salt
   2      cups          american cheese -- shredded 8oz
   3      tablespoons   onion
   1      package       spinach -- frozen, drained

Preparation:

Heat ove to 325F. Remove crusts from bread and cut into cubes. Beat eggs, milk and seasons. Stir in bread cubes, cheese, onion and spinach. Pour into lightly greased baking dish. Bake uncovered for 1 hour or until center is set. Serve immediately.