Brown & drain:
1 1/2 lbs mild sausage
Blot with paper towels.
Spray a 9x13 pan with cooking spray.
Spread sausage in bottom of pan.
Beat:
9 eggs
Beat until fluffy.
Add:
3 c milk
Stir in:
3 slices bread, cubed
1 1/2 c cheddar cheese
1 1/2 tsp dry mustard
1/4 tsp salt
pepper, if desired
Pour mixture slowly over sausage.
Cover with plastic wrap & refrigerate overnight.
Uncover in morning.
Bake @ 350, for 1 hour or until golden on top.