Though it may seem bewildering or even exotic to outsiders, Istanbul’s commercial life is actually organized according to a very old, guildlike system that assigns different neighborhoods to the sale and sometimes manufacture of different types of products. If you bottom out in a pothole and need a rot balans, you head up to the Oto Sanayi area. For kitchen and bathroom accessories, the Çağlayan neighborhood is the answer. And when Istanbulites hanker for grilled sweetbreads, or uykuluk, the only suitable place to go is Sütlüce, down where the slaughterhouses used to operate on the Golden Horn.

One of the big downsides to Istanbul’s otherwise great food scene is the lack of a credible Mexican option. We’re not asking for anything special, just a place that serves simple, tasty tacos or burritos. But when the craving for Mexican gets strong, we don’t despair; we just head down to the waterside neighborhood of Karaköy, home to Beşaltı Kirvem Tantuni, a hole-in-the-wall (literally) spot whose food and atmosphere remind us of the tiny taquerías in Mexico and the United States that we miss so much.

As the legend goes, a 19th-century Catalan farmer was out experimenting in his fields when he came up with a new kind of longer, juicier green onion, the calçot. In creating the onion, the farmer produced much more than a new vegetable; he also paved the way for the rise of an idiosyncratic, and distinctly Catalan, cultural event.

Dear Culinary Backstreets, I’ll have an eight-hour layover in Istanbul and was wondering if you have any suggestions for places to go for a good Turkish breakfast and lunch. I love to eat at small, local places serving authentic food. I would prefer restaurants in the Yeşilköy area, as I have to be back at Atatürk Airport to board an international flight (which I cannot afford to miss!).

It is hard to identify exactly when the forgotten neck of Istanbul between Etiler and Arnavutköy became prime real estate. Not so long ago, overgrown green space alongside the road was interrupted by the occasional car wash and low-slung shanty; it was not so much a place as a road to other places. But now it seems this road is going places of its own. A private tennis club with a swimming pool shares a parking lot with Backyard, a café and restaurant with a big grassy yard filled with lounging parents and children wallowing in that rare Istanbul commodity: grass.

We can’t prove it, but we suspect a network of tunnels lies underground in Beyoğlu that connects most of the meyhanes of Asmalımescit and Nevizade Sokak to the same mediocre kitchen, resulting in unexceptional mezes at scores of venues in this dining district. Following a number of tips, our search for a standout meyhane led us to the unassuming Asmalı Cavit on Asmalımescit Caddesi, where we’ve consistently had outstanding food. This traditional meyhane bucks the trend toward mediocrity with subtle but significant tweaks that, for us, make the meal.

Perhaps it’s the proximity of the waters of the Golden Horn or the weathered wood interior, but we get a distinctly maritime feeling at Köfteci Arnavut, a tiny köfte joint in the historic Balat neighborhood. The members of the İştay family, who opened the place in 1947, seem to think the same thing, running the place with ship-shape efficiency.

The three states of naan may not have any political standing, but they do enjoy culinary representation at one of Shanghai’s finest Uighur restaurants, Xinjiang Yining Yuanzheng, aka Xinjiang Expedition. We’re talking bread without borders, dough diversity at its finest, and a refreshing change of pace from the Chinese staple grains of noodles and rice.

Call it the Sultanahmet Squeeze: How to stay close to the monuments of the Old City yet avoid eating in tourist traps? We get asked this question a lot. Since the Sultanahmet area is primarily a tourism zone, locals-only haunts are few and far between. At most restaurants, prices tend to be higher than usual, while quality and service are unreliable at best. That said, there are some fine places to eat in the area. We’ve compiled a short list of restaurants to help you avoid the traps.

In New York, consider the pizza. You’ve got Famous Ray’s Pizza, Ray’s Original Pizza, World-Famous Original Ray’s Pizza, and so on. Ray and his imitators just wouldn’t bother if New Yorkers believed pizza was “just a slice.” It’s the same story in Istanbul with köfte, a dish that to non-locals may seem like nothing more than grilled meatballs, but which Turks take very seriously.