Purslane has long been considered a weed, but it is increasingly showing up for sale in bunches at farmers markets. Meanwhile, Mexicans have known about its healthful properties for hundreds of years and they eat it both raw and cooked. In Mexico it's called verdolagas. Cooking mellows its tang and shrinks it, which means you can eat more of it! Paired with avocado and a tomato relish, this is a super-healthy vegetarian snack or main dish.