Breakfast: A cup of plain, fat-free yogurt with walnuts and frozen blueberries (thawed and pureed).
Cost: $1.77

Lunch: Egg white frittata with your choice of frozen vegetables; 100 percent whole grain toast.
Cost: $1.11

Dinner: Lentils with brown rice with frozen spinach and fresh carrots.
Cost: $2.00

Snack: An ounce of unsalted peanuts, with an ounce of raisins.
Cost: 19 cents