Let us now praise the potato. Yes, that humble tuber may not be considered very sexy, but for centuries it has been the staple food in countries around the world, including Germany. The potato (Kartoffel in German) is celebrated at this cozy basement (Keller in German) restaurant in Mitte. When you want something fast, filling and inexpensive to eat, venture down and choose from the 100 spud-inspired dishes. The potato-packed menu encompasses everything from herby potato pancakes to Swiss rösti, plus baked taters with toppings of various kinds. There’s a beer garden in summer to help you digest the starch.