Gather all your ingredients: julienned carrots, sliced cucumbers, herbs, cooked noodles, sliced peppers, and lettuce leaves. Set your small bowl of warm water nearby for soaking rice paper.
Gently dip one sheet of rice paper into the warm water for about 10 seconds until it becomes soft and pliable. Carefully lift it out, letting excess water drip off, and lay it flat on your work surface.
Place a small handful of cooked noodles near the bottom center of the rice paper. Add a few strips of carrots, cucumbers, and bell peppers on top of the noodles. Tuck in some herbs for fragrance and flavor.
Gently fold the sides of the rice paper inward, then roll from the bottom up, keeping the filling snug but not overstuffed. Use your fingers to press gently and seal the roll.
Repeat the soaking, filling, and rolling process with the remaining rice paper sheets and ingredients, keeping finished rolls on a plate lined with lettuce to prevent sticking.
In a small pan, lightly sauté a handful of basil and mint just until fragrant and slightly warmed—about 30 seconds. This enhances their aroma without wilting the leaves.
Prepare your dipping sauce by mixing soy sauce, lime juice, fish sauce (if using), and chopped chili in a small bowl. Adjust to taste for a bright, savory accompaniment.
Serve the finished spring rolls immediately, with the warm herbs on the side or tucked inside for extra flavor. Dip into your savory sauce and enjoy the crunchy, fresh flavors with a fragrant herb kick.