Broccoli, Ham and Cheese Strata

12 slices bread
3/4 pound sliced cheese
10 ounces chopped broccoli, cooked and drained
3 cups chopped ham
6 eggs, slightly beaten
3 1/2 cups milk
2 teaspoons minced onion
1/2 teaspoon salt
1/2 teaspoon dry mustard

Using a doughnut cutter, cut circles out of each slice of bread. Put scraps in the bottom of a buttered 9 x 13 inch casserole dish. Put cheese slices over bread.

Add a layer of broccoli and a layer of ham. Put "doughnuts" and "holes" on top. Combine remaining ingredients in a bowl and pour over ham. Cover and refrigerate overnight.

Bake uncovered for 55 to 60 minutes at 325 degrees. Sprinkle some additional cheese on during the last 5 minutes of baking. Let stand for 10 minutes before serving.

Serves 18