Salmon Sashimi Salad

Name: Salmon Sashimi Salad
Ingredients: 4 ounces soba noodles; 1 1/2 teaspoons low-sodium soy sauce; 1 1/2 teaspoons toasted sesame oil; 1/2 teaspoon Asian fish sauce; 1 teaspoon mirin (Japanese sweet rice wine); 1 tablespoon plus 2 teaspoons fresh lemon juice; 2 teaspoons toasted sesame seeds; Coarse salt; 1 wild salmon or tuna fillet (about 1 1/4 pounds), skinned; 3 tablespoons rice wine vinegar; 1 tablespoon soybean oil; 1/2 teaspoon grated peeled fresh ginger; 3 ounces pea shoots, stems trimmed; Freshly ground pepper