You can try to give her some healthy treats between meals to help give her a fuller feeling.  Why don't you get a bag of baby carrots & give them a try.  Most dogs love them.  You can also put some fillers in with her food such as green beans to give her more volume without calories.  Another thing you can do to try to slow down her eating is to take a rock (that's way too big for her to swallow or even comfortably put in her mouth) or a hard ball and put it in her food bowl with her kibble.  This tends to slow them down as they have to eat around the item to get to the food.  I have a couple of friends - one with a German Shepherd & one with a lab who do this to get their dogs to eat at a slower pace.  You can also try to break her meals up into 6 - that way she may not have such an "empty" feeling when it's chow time.

I would not let her steal the other dogs' food tho - as you know that can end up leading to another set of problems.  Perhaps allow the slower eater to have some peace in a room with a baby gate on the doorway so little Miss Piggy can't get in.  As you work her with some obedience training it should get easier to control her. 

She sure is a cutie! 

Me personally would say it is rather normal. But, don't let her keep doing it. Eating to fast when she gets older can cause bloat.

When Storm was a pup she eat like that. I just cut 3 feeding into 6, seemed to help with her. Same amount of food just closer together. They will acutally think they are getting more.

First, you want to make sure there are no physical problems with your dog. Voracious eaters may have diabetes, a metabolic problem, or internal parasites. They need to eat because they are trying to replace what is lost to the other disease or an organism. It is important to make sure your dog gets a thorough health examination from your veterinarian including blood tests and fecal exam for parasites.  Since you said the vet gave a clean bill of health then the next thing would be to try what others have already said.

Putting a ball in the food bowl is a good idea, but you may want to try several large rocks. Also, I would suggest you feed the dogs apart in separate rooms. Or you can tether both dogs in the room when you feed them to prevent competition over food. There are also some “puzzle toys” that you can stuff with your dog’s meal so that she really has to work to get the food out of the toy.

You may want to check the food you are feeding you dog. Some dogs digest some foods better than others and your dog may be eating fast because she is not getting nutrition out of her food. Talk to your veterinarian and try several high quality foods that have different emphasis on certain ingredients to see which one is the best for your dog.  I completely understand your hesitency to feed store bought kibble, but you may need to at least mix it half and half until this pup learns the ropes.  Then, you can try going back to your old feeding routine.

At this point, it sounds like a nutrient issue.  What foods work for one dog may not work for another.  If you really are against the kibble, I would purchase some supplements to give with the food you are feeding.