Depends what type of puree, if it's something sweet maybe freeze feed as a popsicle.
I added baby oatmeal to make them more like a paste and easy for him to eat with a spoon. Or add them as a spread on toast. When using bread it works well with sweet or savory. Also used in plain Greek whole fat yogurt and/or cottage cheese. You can use favorite purées as dip of sorts when trying not so appealing food options or a dip/gravy when offering meats, pasta etc.
Pinwheels! Can be sweet or savoury, there are loads of recipes online but the process is basically the same and you can use any filling. Spread it on a puff pastry sheet, maybe add cheese (or cream cheese if it’s sweet), roll it up, slice, bake for like 15-20 min.
Turn them into pancakes/fritters. Use as a pasta sauce. You can turn them into a pizza dough
Add to pancake batter would be my first thought