Gemma - don't stress too much. Gab has just come out the other end of a super fussy stage where she wouldn't eat anything! No fruit (unless it was puree'), no meat, would only each cheese if it was grated. She would eat weetbix, toast (but not sandwitches... oh no!), snacks like rice crackers etc. She was driving me batty!
I just kept offering and offering and offering.
Finally she came out the other end! She suddenly decided she would eat the sultanas instead of piff them around the room. She also started eating sandwitches and fruit and all the handy food that I wanted her to eat!
Last night she ate a whole bowl of lasagne! Something I never imagined she'd ever do.
Just stick to your guns. Amy will eventually start eating more things. It's frustrating but all you can do is keep offering (never assume they won't eat it because that might be the day they change their mind!).