Oven Pot Roast

4 lbs pot roast
8-10 medium potatoes
4 medium onions, quartered
8 medium carrots, halved
8 medium parsnips, halved

Put meat into a large roaster.  If there is hardly any fat showing than pour 1/4 cup cooking oil over top of meat, add more later if needed.  Cover and bake in 300F oven for 4 hours.
Peel potatoes, peel and cut onions into quarters, peel carrots and cut lengthwise.  Peel parsnips and halve lengthwise.  Pack veggies around meat and add salt and pepper.  If very dry than add more oil over the meat and 1 cup water.  Cover and bake in 325F oven for 1 1/2 hours.