Not only will your budget thank you, but your belly (size) will thank you too! Invest in some smaller plates - even if it's just from your neighborhood dollar store, so that the investment isn't too hefty! Smaller sized dinner plates, side plates, dessert plates and even ice cream bowls will really reduce how much you eat.
Think it's crazy? Just try it...I'll bet you'll prove yourself wrong, by having more leftovers remaining. Don't waste them - leftovers are a frugalite's best friend! Just freeze them if you can't use them up in the next day or two.
Try it: use smaller plates to cut down on how much you consume.