I've been making pizza about once a week for a few months now: homemade dough rolled out and coated with pesto, then topped with tomatoes and onions, freshly-shredded mozzarella. Pretty darn good.
The other night I had some dough left over so I decided to experiment by combining it with some other odds-and-ends in my fridge. Browned some ground beef with appropriate seasonings. Mixed the beef with ricotta cheese and some freshly-grated romano, put it all in the rolled out dough, added some left-over spaghetti sauce. then wrapped the dough up around it all and baked it for a while until golden brown.
I dunno what it is... stromboli?... but it is damn good. Just made up a few of 'em to take to work for lunch. Relatively quick and versatile (ingredient-wise) too. Yum yum.