Cheese Puff Breakfast

5 slices bread, cubed
1/2 pound sharp cheese, grated
2 cups milk
3 eggs
1/2 teaspoon salt
1/2 teaspoon dry mustard
1 pound fried sausage, drain and crumble OR 2 c. cubed ham
1 cup sliced mushrooms
1 can chopped green chiles
1 teaspoon Worcestershire sauce

Mix bread cubed and cheese and place in a buttered, 9x9-inch baking dish.

Mix the remaining ingredients, including meat and any extras, and pour over the bread and cheese. Cover and let sit in the refrigerator overnight.

Bake at 350ºF for 45 minutes to 1 hour, or until set and golden brown on top.

Serves 6-8.