Mon to Sat 11:00 to 21:00, Sun 11:00 to 17:00
Mahony's in New Orleans is Benjamin Wicks's Magazine Street po-boy shop in the Garden District, with the chicken-livers-and-coleslaw po-boy that won regional awards in the mid-2010s.
Try: Po-boys
Tip: The fried chicken livers with coleslaw po-boy is the chef's-take signature; available on the regular menu.
Mon Wed Thu Sun 12:00 to 20:00, Fri Sat 10:00 to 24:00, closed Tue
Killer Poboys in New Orleans is the back-of-Erin-Rose Conti Street po-boy counter, with chef-driven internationally-inspired po-boys including the seared shrimp on house-baked bread.
Try: Modern po-boy
Tip: Seared Gulf shrimp with daikon and sriracha aioli is the cult order; bring the po-boy to the bar.
Tue to Sun 09:30 to 17:00, closed Monday
Central Grocery in New Orleans is the 1906 Decatur Street Sicilian-American deli that invented the muffuletta, with the round seeded loaf and house olive salad still made on site.
Try: Muffuletta
Tip: Order a whole or a half; the olive salad needs 15 minutes to soak into the bread for the canonical bite.
March to October only, Tue to Sun 13:00 to 19:00Cash only
Hansen's Sno-Bliz in New Orleans is the 1939 Tchoupitoulas Street snowball stand at Bordeaux, the country's oldest sno-ball stand and a 2014 James Beard America's Classics winner.
Try: Sno-balls (shaved ice)
Tip: The stand is open March to October only; cash only, and the cream-of-nectar with condensed milk is the canonical order.
24 hours daily
Verti Marte in New Orleans is the 24-hour Royal Street deli at Governor Nicholls, a French Quarter institution with the All That Jazz po-boy and one of the city's few 24-hour sandwich shops.
Try: Po-boys and sandwiches
Tip: The All That Jazz po-boy is the cult late-night order; phone in for delivery to a Quarter hotel.
Sat 06:00 to 09:00 onlyCash only
The Saturday Vietnamese Market in New Orleans East is the early-morning market in the Mary Queen of Vietnam church parking lot, with pho, banh mi and breakfast Vietnamese street snacks.
Try: Pho, banh mi, banh cuon
Tip: Arrive before 08:00; vendors pack up by 09:00. Bring cash in small bills and bring a tote bag.