Bistreaux (1001 Toulouse St., 586-8000;, the casual counterpoint to Le Meritage in the French Quarter's Maison Dupuy Hotel, now has a sister restaurant in Metairie. This second Bistreaux (3838 N. Causeway Blvd., Metairie, 832-3838; opened last week Metairie, taking over the space that had been Bistro 38, a restaurant once affiliated with chef Dominique Macquet. This location serves breakfast, lunch and dinner daily with dishes like grilled cheese sandwiches, grilled Gulf fish, pastas and steaks. The chef is Jason Schwartz, who has led kitchens at other Marriott properties around the country.