I so remember that feeling of "am I doing the right thing" in the early weeks ... I wish I could go back in time and tell myself "It's fine, she'll do really well on it and be eating you out of house and home in another 6 months - stop worrying!" So hang in there :) This thing about numbers of teaspoons is a bit weird, I think. If you were puree-feeding, wouldn't the number of teaspoons depend on how watery you made the puree? Piglet didn't get the hang of eating crumbly things like burger mince until later, and the same with chicken because of the way it breaks up into strands. To start with she was better with things like strips of beef stirfry or roast lamb. Good iron alternatives are dried apricots or date puree (no really - goes down a treat spread on a bit of ricecake)!