1 cup sliced scallions
2 tsp. extra-virgin olive oil
1 pound dry sea scallops, (see Ingredient notes), tough muscle removed
1 tsp. minced garlic
1 tsp. minced fresh ginger
2 tbsp. canola oil
2 tbsp. rice vinegar
2 tbsp. mirin
3 tbsp. white miso
8 oz. soba noodles, or whole-wheat spaghetti