A wonderful contrast of hot and cold, spicy and crunchy, this seitan version of a traditional Thai spicy minced meat and veggies tucked into large edible leaves (or lettuce) is fun to eat and serve. Gluten free? Then opt for the fast and hearty lentil variation!Look for fresh or frozen whole kaffir lime leaves where southeast Asian produce is sold, or substitute 1 teaspoon unpacked grated lime zest in place of the leaves. You can use regular soy sauce or tamari, but mellow Thai soy sauce tastes rich and nuanced here. Look for Thai soy sauce and fiery little red Thai chiles in Thai grocery stores.\