Another thought, I know this may sound weird but some dogs don’t like to eat out of bowls but will eat off of a flat rubber mat, the kind that you put under a water dish, something like this that has edges on it.
One of my dogs accidently flipped his food dish when she was a pup and it hit her on the nose.
For the rest of her life I had to feed her meal on a mat, she was phobic about food in a bowl but had no problem with the big water bowl. Give it a try!
Example https://www.amazon.com/Easyology-Premium-Pet-Food-Tray/dp/B01FK6EY28/ref=sr_1_13?keywords=Dog+Food+Mat&qid=1566304508&s=gateway&sr=8-13
