Grease 9x13-inch glass baking dish. Place bread in prepared dish. Top with sausage and cheese. Beat together eggs and next ingredients. Season with pepper. Pour over sausage mixture. (Can be prepared 1 day ahead. Chill.)
Preheat oven to 350°F. Bake casserole until puffed and center is set, about 50 minutes. Cut into squares.
Defrost. Bake at 350°F for about an hour.