By this point, we all pretty much know that just about everything coming out of Frank Bonanno's four kitchens — Osteria Marco, Mizuna, Bones and Luca D'Italia — makes our heads whirl like a spinning top. But just when you think Bonanno and his enormously talented kitchen crew couldn't possibly have any more culinary stunts up their sleeves, they add suckling pig — which is nothing like any suckling pig you've ever had — to Luca D'Italia's menu, which was already an extraordinary document that causes big, burly men to weep. The pig, stuffed with squishy, beautifully spiced, rich forcemeat and crowned with a salad of arugula and sliced apples sprayed with a sherry vinaigrette, straddles a puddle of deep-flavored pork stock and a superb chestnut polenta. Right now, at this moment, there may be no better dish in Denver. There's certainly no better Italian restaurant.