When I was having a very difficult time finding a dog food that Jasmine would eat and that was good for her, I would boil a couple of chicken breast and chop them up fine. You can portion it out, keep in the freezer and thaw as needed. I would add a small amount of the chopped meat and wet her kibble with a little of the chicken broth. She loved that. I just gradually decreased the amount of chicken and broth until she was only getting the dry kibble. She doesn't like it as well, but she will eat it.
She still occasionally gets days where she just won't eat, and when she does, I open a can of low sodium chicken broth, wet her food with it, and warm just a little in the microwave. I've also tried adding a little cheese on top before warming it.
Just a few suggestions you might try. Feeding a diet of strictly human food is definitely not good for them. They are not getting enough of all the vitamins and minerals they need.