Joe,
As for 'alternative' pizzas, you can't beat Lahmacun (or slightly different, Lebanese Pizza).
I got addicted to these when I lived in Austria a few years back, and they are very versatile. You can eat them like a pizza, or fill them up with tomatoes, cucumbers and yogurt mixed with chopped mint for something like a gyro. Also of course, you can go much less heart healthy, but if you stick to the simple varieties, you can't go wrong.
A quick google search yielded this fairly simple recipe:
http://www.mymerhaba.com/en/main/content.asp_Q_id_E_1834
And as for the food stuff, there is just about no healthier way to cook then en papiette. (it goes by different names):
Basically you use whatever wrapping medium you prefer, paper or aluminum, etc. But for longer cooking times, obviously use aluminum to keep the wrapping from disintigrating.
Then you place whatever food you'd like to cook in the center...a good bet is lamb with potatoes, onions, etc. but this is a classic style for preparing very juicy fish.
Sprinkle whatever spices you'd like, and season to taste and/or heart requirements....the put sprinkle some fresh or dried herbs onto the food. Sprinkle a touch of olive oil over the food, some people use butter, but I'm guessing you can't anymore.
Wrap somewhat like you'd wrap a gift... from the bottom, so that the juices stay in the bag. It will need to expand somewhat, so make the top of the bag somewhat loose.
For a fish dish, with for example halved baby red potatoes, you only need to cook between 12-20 minutes, depending on thickness. For heartier meat and rougher cut vegetables, cook anywhere between 20 and 40 minutes.
It is deceptively simple...the flavors are exquisite, and the juices combine with the olive oil make their own sauce.
This is a very "bachelor" style of cooking, but you can sure wow the hell out of the ladies when a big puffy bag filled with juicy goodness makes its way out to the table.
If I've been unclear, it's because I've got one hell of a headache, you can ask me questions tomorrow.