I saw a picture a little while ago of someone making a grilled cheese sandwich in a toaster lying on it's side. Seemed like a good idea, so I gave it a try.
End product wasn't as good as I had hoped. Tomatoes and cheese didn't quite get that grilled, charred quality that I was looking for. I had to bail on the cooking time once the bread started to burn. If I try this again, I would put the toaster setting to ONE (less burn, more melty) or maybe I'll try just plain old grilled cheese (less thickness). The sandwich was still delicious. It also feels more healthy. You are limited in the amount of fat you can use. In an effort not to burn down your house, I wouldn't recommend slathering your bread with butter for this project. I drizzled some olive oil on top to finish the sandwich. In a pinch this technique is great as you don't have to turn on your stove, oven, broiler, or griddle. A hidden benefit is all the crap that was in the bottom of the toaster winds up falling out so you get a clean toaster to boot!
***Remember this is (or at least it seems) a little sketchy. I am a trained professional so I know about lying toasters on their sides! Be careful. Also, if you have one of those toasters that squeeze the bread in the slot, you're out of luck.