When a restaurant keeps its customers happy for decades, there's a reason. You won't find any of the namesake truffles on the menu, but instead there's grilled salmon with a mango-barbecue glaze and barbecued baby-back ribs. The Oriental Napa salad with tuna is big enough to be a main course. If you're on a budget, choose a specialty like the Kobe burger with pimento cheese. Or, for a splurge,...