Grazing was the way our body was designed to eat," says nutritionist Antony Haynes. "Large meals burden the digestive system, often causing bloating and lowered energy while the body struggles to digest them.

Grazing fare — tacos, taco burgers and taco salads, nachos, chilaquiles (chips mixed with various ingredients), burritos, quesadillas and variations of these — dominate the menu.

A new trend in eating habits, grazing bears little resemblance to the old-fashioned three-course meal or three-meals-a-day routine. Grazing means eating when the mood strikes, often in small amounts — poking through freezer, refrigerator, and cupboards and pulling together different foods that may not traditionally go together.