Wasabi Flank Steak Recipe

Ingredients

• 2 tablespoons wasabi powder
• 2 tablespoons water
• 2 tablespoons horseradish
• 1 teaspoon low-sodium soy sauce
• 1 2-pound flank steak
• 4 teaspoons canola oil
• 1 pound fingerling potatoes
• 1 tablespoon miso
• 1 tablespoon mirin
• 1 bunch watercress