4. Go vegetarian. Women can have a piece of whole-wheat pizza of black beans, barbecue sauce, corn, diced tomatoes, and mozzarella (shredded). Have ¾ cup butternut squash soup (vegetable stock) and ¾ cup fruit sorbet. This gives 473 calories. Men can add ½ cup low-fat yogurt with ½ cup blueberries for 48 more calories.