The only thing that I've cooked in a microwave that's not a reheat is spaghetti squash. In fact, this is my preferred way to cook spaghetti squash. These are not my instructions, but they're close to what I do. But, instead of placing a sheet of carcinogenic plastic on my squash, I simply put it face-down in a ceramic pan with about an inch of water in the bottom.
I forgot about cooking squashes. Acorn, butternut, spaghetti, etc..
We do the same with cutting them in half and nuking them in a little water in a microwave safe glass baking dish.
