Baked Macaroni with Tuna - With fruit

1 (1 lb) box shell macaroni or 1 (1 lb) box elbow macaroni 3 cups milk 1/4 lb butter 1 teaspoon salt 1/2 teaspoon black pepper 4 tablespoons cornstarch 1/4[...]

8 ounces macaroni 1 cup 2% low-fat milk 1/2 teaspoon salt 1 teaspoon dry mustard 1 teaspoon butter 1 egg , beaten 8 ounces cheddar cheese , shredded, divided[...]

4 slices bacon 1 sweet onion , halved and thinly sliced 1 1/2 cups elbow macaroni 2 cups mozzarella cheese , shredded 4 ounces gruyere cheese , shredded 1 cup[...]