Scallop with Mustard Miso Sauce

INGREDIENTS

• 1 1/2 pounds scallops
• 2 tablespoons olive oil
• 1 tablespoon butter
• 2 tablespoons mirin
• 3 tablespoons seasoned rice vinegar
• 1 teaspoon soy sauce
• 1/4 cup Miso & Easy (or 2 tablespoons miso paste + 2 tablespoons water)
• 1 teaspoon mustard
• 2 teaspoons water
• 2 teaspoons roasted sesame seeds
• 1/2 stalk green onions, thinly sliced