Step 1: Prepare Vegetables - Wash all fresh vegetables. Julienne the carrot, cucumber, and bell peppers into thin strips. Tear the lettuce leaves into manageable pieces.

Step 2: Soak Rice Paper - Fill a shallow dish with warm water. Dip each wrapper into the water for about 10-15 seconds until soft and translucent.

Step 3: Assemble Rolls - Place a soaked wrapper on a clean surface. Lay down a lettuce leaf, add julienned vegetables, mint, and cilantro.

Step 4: Roll - Fold in the sides of the rice paper, and gently roll from the bottom up, tucking in the vegetables. Seal the roll.

Step 5: Serve - Arrange the rolls on a platter. Serve immediately with dipping sauces like peanut or soy sauce.