There are 291 dishes ranked on this page. The lightest is Butod at 20 kcal per 1 grub (grilled), the heaviest is Nasi Ambeng at 1080 kcal per 1 portion (single-pax share from communal platter), and the average lands around 339 calories a serving. 143 of them come in under 300 calories, and 40 are 600 or more.
That spread is the whole point. Two dishes off the same menu can be 1060 calories apart, which is more than most people's entire daily deficit. Knowing which is which costs you nothing and changes the outcome.