In a measuring cup, whisk together maple syrup, coconut aminos, rice vinegar, sesame oil, and red pepper flakes until well blended. Stir in arrowroot powder until fully dissolved.

Heat 1 tablespoon of olive oil in a large skillet over medium-high heat. Add ground beef and break it apart with a spatula as it cooks, about 5 minutes.

Once the beef is cooked through, stir in minced garlic and grated fresh ginger. Sauté for 1-2 minutes until fragrant.

Mix in diced bell pepper and shredded carrots, and continue cooking for about 3-4 minutes until the vegetables soften slightly.

Pour the prepared sauce into the skillet and stir well to coat the beef and vegetables evenly. Allow it to simmer for 2-3 minutes.

Remove the skillet from heat and stir in sliced green onions. Spoon the filling into crisp lettuce leaves, garnishing with sesame seeds.