Are you giving her any cereals? Try baby porridge in the morning or evening, you could make rice pudding too or risotto - cooked really well and mashed up. For meat, try making a chicken stew with plenty of veg (parsnip, sweet potato etc) and blending it up - always went down a treat in our house! Ditto fish pie...
Chickpeas and in fact any pulse should be fine as long as they are cooked really well and blended so the skins aren't a choking hazard. You can mix them with stuff you've already made - I think the thing to remember with protein is that a little goes a long way. A teaspoon or two mixed with her veg should be enough at her age. Her milk will be giving her most of the nutrients she needs. Good luck! Is she waking up in the night hungry? If not then you probably don't need to worry too much
x