We eat three squares a day. Or do we? Many of us graze all day long, going from snack to meal to snack to meal. Since it seems we eat everywhere, from the opera to the gas station to the bank, let's at least make sure what we're eating serves our wellness. Let's get back to the cutting board and snack well, today on Christina Cooks. Recipes: Pita Chips with Hummus; Pecan Squares; Asteroids.