Chop the onion and garlic. Peel and cube the turnips and parsnips.
Brown the stew beef in olive oil and remove to crock pot with drippings. Add a bit more oil to the pan and saute onion and garlic for a few minutes. Add 1/2 c red wine to frying pan and heat, then add contents of pan to crock pot.
Add remainder of ingredients to crock pot and cook on high for 6 hours.