http://www.potsaa.com/oval-vegetable/

What vegetable has stocks Purple and large oval-shaped green leaves?
We planted our garden this year and with our cabbage plants is a plant that could possibly be a turnip, but his question, he has large oval shaped dark green leaves, the plant is itsself purple, with stocks. WHAT IS IT?
Sounds like an eggplant to me.
Jeannette Floral Poinsettia Pink Depression Glass Starring Billy Bob