What we learned about our daughter is that she would eat best when the foods she was given were in very small portions and not all mixed together.
For instance Spaghetti.. I make the sauces with shredded zucchini and carrots in the sauce. She could not see it. When I made meat balls, they were tiny for her, but larger for us.
On her plate there was a pile of plain pasta, a small amount of the sauce on the side and 1 tiny meatball alone on another side of the plate. IF she ate something. I added a tiny bit more. No comments, just silently until she quit eating.
Salad was a pieces of carrot, celery some spinach and 1 cherry tomato.. Again if she ate this, I would add a bit more.
Tacos with turkey meat. I would cut the corn tortilla in half and place a tiny amount of meat inside and roll it up. Again if she ate that one, I would add the other half. Pile of lettuce, some avocado, some tomatoes chopped.
Believe it or not, some children like mild hot sauce.. May want to give it a try.
Brown Rice in little balls. or small pile.
Tiny baked potato with just a little salt and pepper. We like them with avocados and sesame seeds and a little lemon.
A sandwich was only a 1/4 of it give to her. If she ate it and another 1/4th could be added to her plate.
A bowl of soup was given to her in a ramekin bowl. and only 1/2 filled.
Blend cooked veggies into soups and sauces. She will have no idea they are there.
A whole apple looks overwhelming, but a small fruit salad, where the fruit has been chapped looks more appetizing.
No begging, not bribes and no begging.
Children sometimes are honestly, just not hungry.. This can go on for days or weeks. The next thing you know they are starving. Follow her lead.