01 - Season the chicken breast with salt and pepper. Heat sesame oil in a skillet over medium heat. Cook the chicken for 4–5 minutes per side, until cooked through. Let cool, then slice thinly.
02 - Prepare all vegetables as described. Fill a large shallow dish with warm water for softening the rice paper wrappers.
03 - Dip one rice paper wrapper into the warm water for about 10 seconds until just softened. Lay it flat on a clean, damp kitchen towel or cutting board.
04 - Arrange a small amount of lettuce, chicken slices, carrots, cucumber, bell pepper, bean sprouts, mint, and cilantro in the lower third of the wrapper.
05 - Fold the bottom edge over the filling, then fold in the sides and roll tightly into a cylinder. Repeat with remaining ingredients to make 8 rolls total.
06 - Whisk together soy sauce, rice vinegar, sesame oil, honey, ginger, garlic, and chili flakes in a small bowl until well combined.
07 - Serve the spring rolls whole or sliced in half, with the dipping sauce on the side.