Breakfast Casserole

6 Large Eggs
2 c Milk
1 ts Salt
1 ts Dry Mustard
2 Slices White Bread, Cubed
1 lb Sausage Browned
1 c Sharp/mild Cheddar Cheese, shredded
Preparation :
* Use either sharp or mild Shredded Chedder Cheese. Beat eggs, add milk, salt and mustard, mixing well. Grease bottom of 9 x 13 baking dish. Place in layers, first the bread cubes, then the sausage, then the cheese; pour egg mixture over the top. Refrigerate overnight. Bake at 350 degrees F. for 45 minutes. Let stand about 5 minutes before cutting. Note: for 8 people use 3 slices of bread and 8 eggs