I recently purchased a insulated server from a tupperware catalogue as a favour for a friend. However, I have absolutely no idea how to go about using it. I didn't go to the party so I didn't hear what the demonstrator said about these products. What can I do with it? Apparently, from what I've read none of it can be used in a conventional or gas oven. Am I meant to cook everything in the regular manner and then just transfer it to the insulated server to keep it warm? If so, it's quite pointless when I can use the slow cooker instead. I need some tips about using it from anyone who has one, and perhaps recipes that you may do? I would really appreciate some advice, or I've just wasted $60 something dollars on something I'm never going to be able to use. Thanks to anyone who can help.