I don't think that it would work for a roast that large but McCormick spice company has those roasting bags that come with seasoning and you just add the meat, carrots, potatoes and onions to the bag and then bake it. It's definitily the lazy way but it turns out really well for the smaller roasts. When its done I usually take the meat out and make gravy out of the drippings. Usually I have to take it out sooner then what the instructions call for probably because of the lack of fat on the deer.