WAYYY too much food. The amount you feed in one day would last my dogs (53 pounds and 76 pounds) 3-4 days :yikes:
Also, adding things to try to get him to eat will only make him pickier. Best thing is to wait him out. When he's hungry, he'll eat. The only concern about not eating is if the dog is ill or small - small breed pups (chis, paps, and similar sized dogs)can get hypoglycemic if they skip a meal or two, but it's usually not a problem with larger dogs.