Even if it weren't in the toniest part of South Coast Plaza (above Tiffany's), Marche Moderne would still be one of the best French restaurants in the county. Impeccable service by actual Frenchmen, a gorgeous patio with potted fruit trees, and a food tour de France prepared by owner/executive chef Florent Marneau that marches through bistro staples like steak frites and steamed mussels with white wine. But he takes you to other places, too: sea urchin, harissa and rose-petal ice cream will make you forget you're in a mall.