budgetmom, i know the feeling! actually, DH & i are both pigs and apparently eat like starving mad-people. my best recommendation in general is soup (it's a dieting trick!): studies show that people who eat a bowl of soup as an appetizer consume less food and calories over the course of the entire meal than those that don't eat soup. basically, the liquid volume in food makes you feel full. so, maybe a bowl of soup for DH along with dinner? and, just me pearsonally, i always feel fuller when i eat beans... (yes, i already know what everyone is thinking!)
along those lines, i think fall/winter are great soup times anyways, so maybe they could be meals unto themselves more often. my cheapest soup is made from 1 lb white beans, 1 diced potato, 1 diced onion, 2 chopped carrots, and 1 lb diced ham. whole pot costs a couple bucks, depending on how much you pay for the ham. buy a box of jiffy cornbread mix for $0.33 and make cornbread fritters, and you have a cheap tasty extra filling meal.