Chop the spring onions, carrot, radishes and cucumber.
Cook the frozen edamame in a saucepan of boiling water following packet directions. Once cooked, rinse under cold water, then drain well. Peel, then set aside in a bowl.
Cook the soba noodles following packet directions.
Combine the spring onion, soy sauce, rice wine vinegar, lime juice, sesame oil and sesame seeds in a small bowl to make the dressing.
Divide the cooked soba noodles among serving bowls. Top with carrot, cucumber, radish, spring onion, edamame and salmon. Drizzle over the dressing and top with sesame seeds.