Blend in flour, salt, and pepper. Add milk gradually while stirring. Bring to a boil, stirring constantly, until sauce thickens. Remove from heat. Pour macaroni mixture into 2 quart greased casserole dish.
Crumble bread slices on top of macaroni.
Makes 4-6 servings. Support your favorite school while you shop online All the finest educational tools for learners of all ages.