In a small bowl, whisk together the peanut butter, tamari, grated ginger, lime juice, red pepper flakes, and water until the sauce is smooth and creamy.
Heat the sesame oil in a non-stick skillet over medium-high heat.
Add the sliced tofu and shrimp to the skillet, searing until the tofu is golden-brown and the shrimp is opaque and firm.
Dip one sheet of rice paper into a bowl of warm water for 5-10 seconds until pliable, then lay it flat on a clean surface.
Place a portion of the cabbage, carrots, cucumber, cilantro, shrimp, and tofu in the center of the rice paper.
Fold the bottom of the rice paper over the filling, tuck in the sides, and roll tightly to secure.
Repeat the process for the remaining three rolls and serve immediately with the prepared peanut dipping sauce.