Cake or Brownies

Buy boxes of cake or brownie mixes when they're on sale. Make huge batches and store remaining amount in the freezer in single portions. Thaw only what you want to eat in the refrigerator. Thrown into a lunch box, it'll keep your food fresh and cool as it thaws. You can alter the flavor by adding ice cream or strawberry syrup. (You can make strawberry syrup with fresh fruit, water, and sugar, affordable ingredients).