01 - Season chicken breast evenly with salt and pepper on both sides. Heat sesame oil in skillet over medium heat. Place chicken in pan and cook 4-5 minutes per side until internal temperature reaches 165°F and meat is opaque throughout. Remove from heat and let rest 5 minutes before slicing into thin strips.
02 - Julienne carrot and cucumber into matchstick-sized pieces. Slice bell pepper into thin strips. Fill large shallow dish with warm water for rice paper wrappers. Arrange all prepared ingredients on work surface for easy assembly.
03 - Dip one rice paper wrapper into warm water for 10 seconds until pliable but not mushy. Remove and lay flat on clean, damp kitchen towel or cutting board. Wrapper should remain slightly tacky for proper rolling.
04 - Layer small handful of lettuce in lower third of wrapper. Top with chicken slices, carrot, cucumber, bell pepper, bean sprouts, mint, and cilantro. Fold bottom edge tightly over filling, fold in sides, then roll forward into compact cylinder. Repeat with remaining wrappers and filling.
05 - Whisk together soy sauce, rice vinegar, sesame oil, honey, grated ginger, minced garlic, and chili flakes in small bowl until honey dissolves completely. Sauce can be made ahead and refrigerated up to 3 days.
06 - Arrange spring rolls on serving platter. Serve whole or cut diagonally in half. Accompany with dipping sauce in small bowl for dipping. Best served immediately at room temperature.