I concocted this handy appetizer by combining ideas from a couple different recipes. The end result was so terrific that my friends (vegetarians and non) were recommending my own dish to me, unbeknownst to them! The tofu soaks up the chili and lime flavors, the veggies stay crunchy and tangy, and the lettuce wraps hold everything in a convenient, portable little package! Chili paste is easily found at an Asian market and it's well worth the hunt. If you can't get your hands on any, substitute with red chili flakes.