My sister and I found MoMo's by chance and returned every day that we were in Prague. This place is a must stop for any one who is gluten-free, celiac, and/or vegan! Everything they serve in their cafe is gluten free, vegan, and sugar free - each day is a new cake or pastry, they serve sandwiches & quiche for lunch, and also offer a great drink menu. They are also incredibly friendly and helpful - we loved this place!
This is a sushi place that, like most, does not have a tonne of options. A lot of the dishes are already marinated, etc, HOWEVER, they have gf soy sauce, and the chef is aware of celiac disease and is more than willing to adapt the pieces to be gf. 2 ciders and a bunch of cocktails available as well.