We stayed at Hyatt Regency Jogjakarta without the breakfast package. But then we got lazy to go out and decided to stay in and pay for their breakfast buffet. It was not that expensive for their class (ca. 100-150k IDR), with wide range of selections. You would get the usual egg station, salad bar, cereal and dairy bar, and western food, on top of typical Indonesian food such as chicken porridge, fried rice, etc. Great places, indoor and outdoor, real nice vibe with all the greens. Love it.
Hyatt Regency Jogjakarta – Jl. Palagan Tentara Pelajar, Panggung Sari, Sariharjo, Ngaglik, Kabupaten Sleman, Daerah Istimewa Yogyakarta 05581.