Well, one is okay. But don't give your dog lots of human food treats. For one thing, a dog gets to expect it for treats all the time and will be annoying with begging for more. Also, a lot of human food really isn't good for dogs; tater tots have more fat than just potatoes. If you want to give human food as treats, try baby carrots, apple slices, and the like. Just no grapes or raisins, onion or garlic, chocolate, macadamia nuts.
If the dog likes it, then yes, just not too many(as I'm sure you knew) There is a list of things that are poisonous to dogs, a few things on there are actually quite odd and I never would have guessed.
POTATO CANT BE HARMFUL TO DOGS!! depending on the size of a dog, it can cause serious stomache aches and death in some dogs. bigger dogs have a higher tollerance but it is not reccommended. other harmful things are, raw onion, mushrooms, anc chocolate.