To lighten up recipes, find lower-calorie substitutes for some of the ingredients, like ground turkey instead of ground beef. Try Greek yogurt instead of sour cream or mayonnaise. Pureed white beans can add a creamy texture to soups and sauces instead of heavy cream. Veggie noodles made with zucchini are a tasty option for regular pasta. And cauliflower rice is a wonderful substitute for white rice.