There are a few small warungs with amazing views in the area of Penelokan, Kintamani, on top of the ridge overlooking Mount Agung. This one is in the most convenient location, right next to the parking spot with the view!
You can have drinks, or some small bites to eat, while you soak up the atmosphere of the stunning volcano. It is a breathtaking site to see the size of it, and witness where the lava has leaked down the mountain after an eruption.
The food was OK, however, the location is what makes it good. Our family just had hot chocolates (it was rather cool that high up), and fried bananas, but my brother and his kids tried the spring rolls, which were plentiful, mie goreng, and an omelette.
The service was friendly, but remember to take a light jumper or long sleeve shirt as it can get cold when the clouds roll over.