Heat up a pan and add sesame oil. Toss in garlic, ginger, chili flakes and scallion bulbs and cook 1 minute, stirring frequently. Add in crumbled tofu and the rest of the ingredients (tamari --> brown sugar). Allow the liquid to cook off, and cook until tofu starts to brown, stirring frequently, about 10-15 minutes.
Meanwhile, prepare garnishes, lettuce leaves, and the peanut sauce. Cook vermicelli if using. To make the peanut sauce simply mix together ingredients and thin with water to desired consistency.
Allow tofu crumble to cool before serving in lettuce wrap topped with turnip, scallion greens, peanut sauce, and sesame seeds. Enjoy!