House of Raminten is one of the must visit restaurant in Yogyakarta. It's located near Malioboro. You can go here with a group of friends.
If you go here at night, there will be (possibly) a long queue here. So i recommend to go here in the morning or in the afternoon for more comfy time.
This has a lots of variety of food with SUPER affordable price. But the taste is just so so in my opinion.