Last summer I went a couple of times to Albert’s on Karl-Marx-Allee, for their wednesday Bar-BQ which happens no matter what’s the weather like. The 1st time, it was actually raining.
So for 14€ you have access to a big buffet with salads and stuff and to the barbecue, where you can get sausages, poultry, steaks, but also vegetarian stuffs such as feta and vegetables. And there’s also a nice dessert buffet. The food is very tasty and the staff quite friendly, they also have a nice terrace. The drinks are exclusive and they have nice cocktails.
They also do all you can do Ribs, build your own burger, brunches, but I haven’t managed to try those yet.