You can regrow or recycle your own vegetables. As a Vegetarian, I have an incredible Herb Garden and all of the Herbs can be regrown. I always have a refrigerator full of vegetables that can be regrown. I eat Celery everyday and I've decided to simply re grow every Stalk that I buy along with other items listed here.
I've included a link to 13 Vegetables you can regrow again and again.
I started this Celery about 3 days ago. I keep it in the Sun on the Kitchen Counter.