Macaroni And Cheese - cooking recipe

Ingredients

2 cups small elbow macaroni, cooked aldente
1 lb shredded sharp cheddar cheese
8 ounces low-fat sour cream
1 cup water, reserved from macaroni
3 tablespoons breadcrumbs
i can't believe it's butter-flavored cooking spray

Preparation

Combine all ingredients except water. Add water a little at a time if mixture is to thick.
Put in an oven safe dish.
Top with breadcrumbs.
Spray I Can't Believe It's Butter over breadcrumbs.
Cook for 20 to 30 minutes at 350 degrees until breadcrumbs are golden brown.