Bring a large saucepan of water to a boil. Add rice noodles (or rice sticks) and cook until just tender, about 3 minutes. Drain and rinse under cold water. Gently squeeze noodles to remove most of the water.

Meanwhile, combine 1/4 cup water, fish sauce, lime juice, sugar and crushed red pepper to taste in a small bowl.

Coarsely chop the noodles and combine in a large bowl with tofu, carrot, snow peas, basil and mint. Pour the sauce over the salad and toss to combine. To serve, spoon about 1/2 cup salad onto each lettuce leaf and roll up.