Sometimes picky eaters go for the wet Merricks Grammy's Pot Pie.
www.merrickpetcare.com Look up a retailer in your area, and see if they have any samples.
Maybe you could cook up some ground turkey, oats, and veggies. Blend it or mix it all together and see if she likes that. Or maybe cook up some scrambled eggs(don't use butter to cook them in) and sprinkle a tiny bit of cheese on top. And then add some cooked veggies...
Good luck!
Hopefully you'll get some more advice