our scottie/westie mix pup eats vegetables and breads as well as meats. first dog we've had that actually likes them. not just tolerates them. vet says it's good for him.
I've got one that eats anything --- and I do mean anything. I've caught him with fawns, birds, the neighbor's chickens that get across the fence, moles, squirrels.
The other one eats anything with the exception of uncooked hotdogs. If the 'dog is cooked, it's OK.