With December about to lift its wintry head and amble into Istanbul on the heels of a rainy November, there’s no cure for chilly weather and pandemic brain quite like the classic, cozy offerings at any beloved esnaf lokantası (tradesman’s restaurant). From sautéed beef over roasted eggplant purée to white beans in tomato sauce to moussaka and stuffed peppers, there’s a reason the most established of these establishments have a steady stream of loyal customers: reliably good food at a reliably good price. The esnaf lokantası is the bread and butter of Turkish dining, and any worthy Istanbullu will know their neighborhood’s favorite haunt. The problem with Beşiktaş, a formerly working-class district that has become a hub for Istanbul’s student life, is that scores of longstanding eateries have been shuttered.