In the microwave, cook 1/2 cup quick-cooking oats with low-fat or unsweetened soy milk. Add 1/2 apple (sliced or chopped), 1 teaspoon honey, and a pinch of cinnamon.
Day 3: Lunch
To make a chicken salad, toss 4 ounces shredded skinless roast chicken breast with 1/4 cup sliced red grapes, 1 tablespoon slivered almonds, 1 tablespoon light mayonnaise, and 1 tablespoon plain, unsweetened Greek yogurt. Serve over lettuce. Eat with 1 banana.
Day 3: Dinner
Serve 4 ounces steamed shrimp with 1 baked potato topped with 3 tablespoons salsa and 1 tablespoon unsweetened Greek yogurt, plus 3 cups spinach, steamed. Finish the meal off with 1 ounce of chocolate or a 100- to 150-calorie ice cream bar.