Combine tuna, 1 tablespoon mustard, ginger, green onions, soy sauce and pepper to taste. Form into two 3/4-inch thick patties. Heat oil in a skillet until hot, carefully add tuna patties and sear for 4 minutes. Meanwhile, split rolls in half and drizzle cut sides with some sesame oil. Whisk together remaining tablespoon mustard with honey. Flip patties and continue to cook 5 more minutes. Place rolls, cut side down, on coolest part of grill to toast. During last minute of cooking baste patties with honey mustard mixture. Assemble patties on toasted rolls; top each with cucumber and sprouts. Serve with top of roll askew to see presentation.
Yield: 2 servings