Pinakbet is one of the better ulam choices, but the pork decides it. Squash, ampalaya, eggplant, okra and sitaw together are about 40 calories per 100g, so the 130g of vegetables in a scoop is 60 calories. Then the cook adds pork belly for flavour, about 30g per serving at 130 calories, and a tablespoon of oil to fry the bagoong. Kawaling Pinoy's Tagalog version comes to 434 per serving with half a pound of belly for 4 people, which is a very pork heavy home portion.
The Ilocano version with bagnet on top is a different number. Bagnet is deep fried pork belly, about 500 calories per 100g, and a proper Ilocano pinakbet has a handful of it crumbled over the top. That pushes a serving to 350 or more. The Tagalog version with kalabasa and a little belly is the 230 calorie one, and the carinderia version with mostly vegetables and a few pork scraps can be as low as 170.
At 40 to 50 pesos a scoop it is the cheapest way to fill half your plate. Pinakbet with 1 cup of rice is about 490 calories, and the fibre from the ampalaya and okra makes it more filling than the number suggests. The bagoong is salty rather than caloric, about 15 calories per tablespoon, so the taste does not cost much.