Our LO really likes fruits and toast sandwiches cut up into little pieces. We've used avocado, cream cheese, hummus and purees we needed to use up for the filling - I just smoosh the toast down with my hand and then put a light layer of whatever spread on and put another smooshed piece on top, then cut into strips and then into small squares - not sure when to give the strips like little toast fingers, but my LO doesn't have teeth yet so not sure about the biting a piece off.
Also - since fruits are so slippery, I read that you can smash up cheerios and dust the fruit with it to make it easier for LOs to grab. We do this - especially with cut up bananas - I just put some in a baggie, smash them with the rolling pin, drop cut up banana or mango or melon or whatever in and shake to coat and then I can put the pieces on DDs tray and she has no problem!
I am pumped to look at some of those recipe links - thanks for sharing!