Step 1Blend together sesame seeds, mayonnaise, vinegar, ginger, soy sauce, mirin and water until smooth. Set aside in refrigerator.
Step 2Drain tofu and pat dry with paper towels. Cut into cubes and place in medium bowl. Arrange tomato slices, cucumber slices and sprouts on top.
Step 3Pour dressing over and garnish with bonito flakes and seaweed.