I eat these quite often myself, but I use aged Gouda (hard to find the GOOD stuff in the U.S., but Old Amsterdam is one excellent brand) and omit the olive oil since there's enough in the cheese. Then I just nuke them until the cheese melts. Yummage City!
Such a tasty little treat that is so easy with very few ingredients. I love parmesan cheese, so these were just perfect for a light snack.
Oh, yum. Yum. Just - yum. I've been doing toasted cheese on Triscuits since I was a kid, but have never tried parmesan and garlic powder. These are perfect!