Creamy sauces like those in fettuccine alfredo or homemade macaroni and cheese are often loaded with butter, heavy cream and/or cheese. We ditch heavy cream and make velvety sauces with low-fat milk that’s thickened with flour. To make your own cream substitute: Combine 1 cup low-fat milk with 4 teaspoons all-purpose flour; whisk over medium heat until bubbling and thick. Cup for cup, thickened low-fat milk saves more than 680 calories and 53 grams saturated fat vs. heavy cream! For creamy salads, such as potato salads, opt for low-fat mayonnaise and/or reduced-fat sour cream; a blend of the two tastes great. One tablespoon regular mayo has 90 calories and 10 grams fat vs. 15 calories and 1 gram fat in low-fat mayo.