Serve with magic mustard sauce. Reduce heat to medium - low and simmer until reduced to one cup. Mash to dissolve. Add carrots, scallions, tofu and eggplant. Cook until veggies are tender.
Slice tuna very thin, serve with sauce down and garnish with pickled ginger.
A great appetizer. Gyoza Nira is a vegetable sold in bunches in oriental groceries, and has a garlic flavor. Combine with remaining ingredients and mix coarsely with fingers. Place a tablespoon of filling in gyoza skin and crimp edges. Place small amount of oil in frying pan and heat.