For any other food, stainless steel is great for beginners. It's oven safe, easy to clean if/when you burn the crap out of something, and relatively cheap.
The other important recommendation I would make is cookware with tight fitting lids (or learn how to make one with foil). This excludes IKEA for the most part, whose pans I have in my apartment right now.
Once you decide that you want to "upgrade" something, I would recommend a nice Dutch oven with a heavy lid.