Homestead Breakfast Casserole

Ingredients:
8 slices of bread, cubed
1 lb. breakfast sausage, fried and drained
6 eggs
2 c. milk
1/4 c. butter
1/2 tsp. dried mustard
1 lb. grated cheese
1/2 tsp. salt
1 chopped onion

Directions:
Place bread in bottom of a casserole dish. In a bowl, beat eggs, then add milk, onions, salt, and mustard. Sprinkle sausage and cheese over the bread. Slice butter over the cheese and pour the egg mixture over the top.
Bake for 45 minutes at 325 degrees.