Tapas have had their moment in the sun. Now, dim sum is about to get big. Fast-casual chains such as bd's Mongolian Grill and Lazy Dog Café have started serving up Asian-influenced small plates including dumplings and "Chicken Sriracha Bites." The trend is hardly limited to fast-casuals, however. Earlier this year, Má Pêche, a New York City restaurant, changed its service approach to begin serving dim sum-style small plates from a cart.