Cooking in the rain

OK, I've got my nice, small, lightweight tent, which I can easily fit into (this is one big advantage of being small) and most of my gear fits inside and under the vestibule, but how do I cook in the pouring rain given that there is now no room in my miniature vestibule and it wouldn't be safe anyway? I'm just wondering what people do without a nice big vestibule to cook in?