I only have experience of PE low fat meals to LGW/MCO/LGW and usually they have involved plain grilled chicken or a slightly curry flavoured chicken with either a lentil type dahl or potatoes with a bit of veg, a bowl of fresh fruit and a salad with dressing. The mid afternoon or pre landing snack tends to be a roasted vegetable wrap. Personally I am not very keen on them as they tend to be quite bland. My last breakfast wasn't too bad, cornflakes and fruit.
I’ve had low fat meals in PE quite a few times and they’ve always been quite nice. Grilled chicken with grilled veg and rice as an example. Never ordered one in UC as suspect it would be the same as a PE meal just plated differently
We had requested low fat but based on info here have just cancelled request, will take the regular offering and only eat the good bits ! The meal pictured does look 'unusual'