01 - Season chicken breast with salt and pepper. Heat sesame oil in a skillet over medium heat. Cook chicken for 4-5 minutes per side until cooked through. Let cool, then slice thinly.
02 - Julienne carrot and cucumber, slice bell pepper, and prepare remaining vegetables. Fill a large shallow dish with warm water for softening rice paper wrappers.
03 - Dip one rice paper wrapper into warm water for about 10 seconds until just softened. Lay it flat on a clean, damp kitchen towel or cutting board.
04 - Arrange lettuce, chicken slices, carrots, cucumber, bell pepper, bean sprouts, mint, and cilantro in the lower third of wrapper. Fold bottom edge over filling, fold in sides, and roll tightly into cylinder. Repeat with remaining ingredients.
05 - Whisk together soy sauce, rice vinegar, sesame oil, honey, ginger, garlic, and chili flakes in a small bowl until well combined.
06 - Serve spring rolls whole or sliced in half with dipping sauce on the side.