Add all of the ingredients for the Sunflower Butter Sauce to a blender and blend until completely smooth. Refrigerate until ready to use.
Cook the rice according to package instructions. Layer 4 bowls with butter leaf lettuce, cooked brown rice, shrimp, shredded cabbage, grated carrot, cucumber slices, and avocado. Top with fresh mint or basil and desired amount of Sunflower butter sauce. Serve and enjoy!