Dish is the most popular burger restaurant in Prague, and it's also my favorite! They're a small…read morebistro that gets filled quickly, so you MUST make reservations online. They have around 10 really interesting and delicious burgers to choose from, and you just have to pair them with the bistro fries with garlic and parsley!
Also, their sauces are worth mentioning, especially to use as a dip for your fries. The BBQ sauce is one of the top 2 I've ever had and the confited garlic aioli is a perfect dip for fries or garnish for your burger (some burgers even come with it). Unfortunately, I didn't get to taste their "Dish remoulade" because it was all out, but it's their signature sauce, which I can only imagine must be amazing. Come to Dish and you're going to get high quality food, point blank, period.