I make casseroles - just brown the meat and add the veggies and put in the oven for a couple of hours .... then use the hand blender to puree it up. I also cook chicken etc and add tomato (tinned) and apricots, for example, and blend after cooking for 5 mins.
Annabel Karmel recipes are good
Also, any adult recipe (obviously not adding salt etc) cooked well are good and easy to puree. If you have recently started solids then don't do too much too soon. "Food before 1 is just for fun" and most nutrition comes from milk still.