Hi,
I know how frustrating it can be, especially when they start noticing a difference. How old is your LO?
So it looks like meat, rice, broccoli, carrots, peas, nuts (depending on her age), fish, eggs, grapes, hummus (chickpeas, olive oil....would have to make homemade because of lemon), gluten free breads/crackers..(not sure where you are but there are rice crackers at places like whole foods here in the states that have no preservatives)...etc., are all ok?
Just trying to grasp what's available and how old your LO is?
If mayo is ok you can make a gorgeous chicken salad with cut up grapes and mayo, put on rice crackers, or just eat plain. Turkey or chickent and rice pot pies with gluten free dough. Gluten free pasta with olive oil. Things like that?
My dd2 lived off of peas, turkey, pears and almond butter for months. I would literally make a vat of sweet peas and she would have them morning, noon and night. Luckily she loved them....now she won't touch them, I don't blame her!