This easy, healthy dish is perfect for quick summer meal. Drain noodles well before coating with sauce.
Bring a large pot of water to a boil, and add salt. Add soba noodles; cook until al dente, 4 to 5 minutes. Drain into a large colander; rinse with cold water until completely cool. Drain well. Transfer noodles to a large bowl; add peanut sauce to coat.
Combine soy sauce, mirin, and ginger in a bowl. Cut tofu into 8 pieces; place one on each plate. Drizzle with soy mixture. Divide noodles among plates; top with radishes, jicama, and pea shoots.