I think it is free. Tuna / salmon pate made with quark, lemon juice, pepper. Chickpea hummus - kind of with fat free fromage free and a ton of garlic and coriander. Smoked salmon rolled up with quark which you've flavoured with herbs is mega. Palma ham with melon... ooh, if only I had the time to shop and cook...
I think the issue with pureeing fruit is that it is far less satisfying / filling when you break all the fibres down by mashing or pureeing. Also the sugars hit your blood stream at a rate of knots without the fibre to slow it down. But it doesn't apply to everything with SW - mashed potato for example.. or sweet potato - or celeriac...
I also have, somewhere, a fantastic recipe for lemon and raspberry cous cous cake. Sounds foul, but as I remember (off the top of my head) you mix eggs, lemon rind & juice, sweetener, quark or muller light or similar, together and add to cous cous that's been made with lemon juice and water. Layer that in a bowl with frozen raspberries in between and bung in oven. Eat warm, or cold.
As I remember, it was about 4 sins or so for the entire cake that could have served 8, but did me over 2 nights! Actually, I am a mine of recipes -I just don't have time to cook as much now I've gto a toddler and a schooly to deal with...