Diana's Breakfast Casserole

1 1/2 - 2 lbs. sausage or diced ham

1 1/2 cup milk

1 tsp. salt

1 lb. hashbrowns

1 dozen eggs

1 1/2 tsp. dry mustard

2 cups grated cheese

pepper

If using sausage, cook it. Spray 9x13 with pam. Place hashbrowns in pan, then the cooked meat. Mix eggs, milk, seasonings, and cheese. Pour over the hashbrowns/meat. Cover with foil and refrigerate over night. Bake at 350 for 45-60 min. Remove foil for last 15 min to brown top.