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By the time they've given their all to the stock, they're mushy and pretty much flavorless. And did I mention mushy?

I usually remove the onion and give the carrots and celery to the dogs.

If they still have some flavor, you can mash or puree them and use to thicken gravy.

My OH eats the onion, dachshunds get celery and carrots:-). To me, they are just too tasteless and (yes db!) too mushy indeed - they gave their best to the stock, and I'm fine with it.

@joyyy - we buy frozen green beens for the pups:-)

Thanks for asking this question, I was recently wondering this, as I'm only now starting to get fancy (and moving from a small NYC apartment w/ virtually no kitchen helps, too) and am considering making my own stock. I was very concerned about being wasteful w/ the veggies, but it's great to know I can give them to a dog (ha - when I get one!).

@Cassaendra - She sounds certifiable if she thinks her dog has a brand preference ... and details it for strangers at the store! But yeah, people at the cash register like to say stupid things like "so you really like green beans, huh?" and we usually just mumble "uh, yeah" to avoid having to explain to someone why you have to feed your dog weird stuff (people already think we're weird in the spoiled dog/no kids vein).

@brooke29 Hah, everytime I make stock, my black and tan dapple dachs loiters by the stove....he loves the carrots and celery!

I feed carrots to my dogs too but please note that onions are NOT ok for dogs and the garlic is fine as long as it is a small amount cooked no raw garlic for the dogs.

I use slightly less then my super fresh veggies too so it is more like yes I feel it isn't wasteful but a good use of older veggies.

@love2cook; My vet told me NO garlic or onions for dogs and cats. Of course, no chocolate either, and never tomatoes for a cat, which is sad as my cat loves spaghetti, but she can't have any now. (I never let her have more than a few strands anyway, but the vet said to stop even that much! There are SO many human foods that will poison our animals, I always double-check before trying anything. My other cat loves cantaloupe, which is OK. Anyway, since the stock veggies have all cooked with the onions and garlic, I don't let my animals have them. I've always felt bad about tossing them, but I just tell myself I've gotten my value from them.

Sorry for the tangent nmp164.

Thanks for bringing up the garlic and onions. I didn't know about that at all, so I looked up what other foods are hazardous to dogs. I won't feed my puppy anymore grapes. My husband gave her one a couple days ago, glad we didn't give her more...

Thank you, thank you, thank you.

The only reason that they are thrown away is that most people don't care for them. They aren't poisonous, though they have lost a good bit of their nutritional value, so it is purely subjective as to what is to be "done" with them. If you find them tasty on rice, or can find some other use for them, there is absolutely no reason not to utilize them. It's just food. Never a need to ask for permission to enjoy that which you already do.