I so wish I had know about all this stuff when my kids were little. My oldest (12) has major eating problems, in part, because I catered to him. I think I reinforced his fear of food.
If she eats meat, cheese, and veggies, give her those. She can eat them for breakfast, if she wants. Cook everything in lots of butter or coconut oil. She really doesn't need anything more. Vary the veggies and meat to expand her tastes. After a while, maybe introduce eggs again. try cooking them in every possible way, again with lots of butter. (My picky eater like soft-boiled eggs with toast. You can use coconut bread toast.) Put them on your plate. ENJOY them. That sometimes makes the kids want to take it from you. It might be tricky to always have meat cooked and on hand, but it will be good for both of you.