In 10-inch nonstick skillet, cook turkey over medium-high heat, stirring frequently, until thoroughly cooked; drain and return to skillet. Stir in green onions, cilantro, mint, lime juice, fish sauce, peanut butter, chile paste, sugar and red pepper flakes. Cook 3 to 4 minutes longer or until hot.
To serve, spoon 2 heaping tablespoons turkey mixture, 2 tablespoons carrots and 1 teaspoon peanuts onto each lettuce leaf; wrap around filling. Serve warm.