Can I use my stoneware Crock-Pot insert in the oven?

I want to bake a large pasta cerole, uncovered, in my oven with the stoneware. I can then insert it into the Crock-Pot heating unit to keep it warm during a party. I just want to make sure the stoneware is sturdy enough to handle the oven heat. (350 degrees for about an hour) It is a large oval stoneware insert.