Cut steak in 2 x 1-inch pieces. Combine soy sauce, mirin, sugar, lime juice, sesame oil, and daikon to make dipping sauce. Heat skillet, melt 2 tablespoons of the butter and quickly fry the steak until browned. Melt 1/4 cup more butter and saute the mushrooms and onions. Melt the remaining 2 tablespoons butter and saute the won bok. Dip the meat and vegetables in sauce before eating. Makes 6 servings.
Approximate Nutrient Analysis per serving:
410 calories, 22 g fat, 12 g saturated fat, 115 mg cholesterol, greater than 2800 mg sodium, 19 g carbohydrate, 2 g fiber, 14 g sugar, 32 g protein