Pengat pisang sounds innocent, it is just banana right. But the banana gets simmered in a pool of coconut milk and gula melaka until it is basically a sweet santan stew. The fruit contributes maybe 90 calories, the coconut milk and palm sugar bring the rest up to 280.
It is a proper comfort dessert, warm and rich, the kind of thing you want during puasa or a rainy evening. Nothing wrong with it, just know it is a 280 calorie bowl and not a guilt-free banana snack. Lighter santan is the easiest way to trim it down.