To make Miso Sauce:.
Place brown sugar in heavy saucepan, and melt over medium-low heat, being careful not to burn. Remove from heat, and stir miso and sesame seeds into melted sugar.
To make Wrapping:.
Trim edges of lettuce leaves to make them uniformly circular. Stack sesame or basil leaves alongside.
To make Salad:.
Heat oil in skillet or wok over medium-high heat, and stir-fry tofu about 2 to 3 minutes. Remove from heat, and set aside.
Slice avocado into 1½-inch-long pieces. Slice red pepper into 1 ½-inch-long pieces. Set aside.
Combine white radish with 1 teaspoon sesame oil, 1 teaspoon sesame seeds, 2 teaspoons brown sugar, ½ teaspoon salt and 1 teaspoon red pepper powder. Set aside.
Combine bean sprouts with 1 teaspoon sesame oil, 1 teaspoon sesame seeds and 1 teaspoon salt.
To assemble rolls, place 1 lettuce leaf on flat surface, and layer remaining ingredients in following order: basil leaf, bean sprout mixture, radish mixture, tofu, cucumber, avocado and red pepper. Spoon about ½ teaspoon Miso Sauce over top. Wrap by tucking ends in, and roll up. Repeat with remaining ingredients.