SOOOOOO may people helped me on this site so I finally think I can help you.

My dog Luv Bug, a beagle mix, refused to eat dry food, it was at a severe point that if she didn't eat she would be too skinney, I tryed every thing!!!! But nothing.

But then one day at the dinner table she started to beg for food, I gave her some left over hambuger, and she ate it and asked for more!!!

Ever since then, what ever extra meat we have after dinner I give it to her and mix in her food, so maybe if you find a certain kind of meat your dog likes just mix it in with her food and put some water in it or gravy, if this doesn't work then you really need to go to the vet. I hope it works!!!!!
P.S. You can also she that how much food you really do throw away!!!

Lots of Luck
Luv Bug and owner