Spíler, located inside the tourist-heavy Gozsdu Courtyard, is one of hottest restaurants in Budapest's buzzing Jewish Quarter. It's a massive space with three, highly-Instagrammable dining rooms that operate at capacity most evenings. The menu features popular international fare (nachos, wings, burgers) alongside Hungarian classics, of which the túróscsusza (€7)—baked noodles topped with cottage cheese, sour cream, and specks of fried pork fat—is the one to go for. Hungarian wines, and almost 30 types of local bottled craft beers are available for pairing. With most dishes below €10, prices are reasonable for the prime location.
Tangentially related to Spíler is that its owner, a successful Budapest restaurateur, has been publicly accused of gaining unfair advantage as some of his restaurants benefit from significantly below-market rents. This of course doesn’t detract from Spíler’s worth as a restaurant, but something to keep in mind as you decide where to spend your money.