Pinterest came into play Thursday as first lady Michelle Obama celebrated the second birthday of MyPlate, the Department of Agriculture's food group icon that replaced the food pyramid. FLOTUS pinned some recipes to a brand-new board. So what are her faves? Pan-seared mahi mahi with olives and oranges, honeydew and lime soup, watermelon kabobs, whole wheat pizza, carne asada tacos and a berry banana smoothie, to name a few. To be even more helpful, she used hashtags like #protein and #veggies to indicate which food group the recipes represented.