not sure about the other questions, but i'll answer these two as best I can.

"What can I do with all these purees?" 1/4cup of fruit puree can replace the butter in a normal 20cm cake or loaf pan recipe. Try this one: 3 mashed bananas, 1/4 cup puree, 3/4 cup sugar and 1 2/3 cup of flour. Mix. Bake at 180 for an hour or place in muffin tins and bake for about 20 mins.

"Is it OK to skip a solid "meal"?" I have done this a few times with DS who is 7 months. Actually he usually only has one 'sit down' meal and then grazes a bit on fruit and bread/whatever we're eating. There have been a few days where he's refused food altogether, and when he's been backed up for a while we go just fruit and BF. I don't know who originally said it, but I love it and keep repeating it- 'food is fun until they're one'. As long as bubs is getting her milk, then she should be fine.