Not all foods. The main function of a microwave is to reheat already cooked food and drinks. This, however, does not exclude them from preparing foods, though it is only a few that can be prepared this way.  The microwave oven is a good example that can prepare foods such as cake and possibly bread too. Always inquire from your supplier about what your microwave can and can’t do. Also, research online and read verified reviews to get as much information as possible.