Lighter Paula Deen's Slow Cooker Creamy Mac & Cheese

INGREDIENTS

2 cups

uncooked elbow macaroni (an 8-ounce box isn’t quite 2 cups)

4 tbsp

light margarine (I use Brummel and Brown)

2 1/2 cups

(about 10 ounces) grated reduced fat sharp Cheddar cheese

3/4 cup

egg substitute, beaten

1/2 cup

fat free sour cream

1 10 3/4 ounce can

condensed Cheddar cheese soup

1/2 tsp

salt

1 cup

whole milk

1/2 tsp

dry mustard

1/2 tsp

black pepper