I made pizza last week in a large cast iron skillet using left over spaghetti sauce with frozen spinach and garlic added to it. I used Molly Katzen's calzone dough recipe for the pizza dough and a mix of mozarella and cheddar for the topping.
Then the next day I saw the Good Eats pizza episode - Flat Is Beautiful
And today this recipe:
Cooking For Engineers - Test Recipes: Pan Pizza
I will definitely change things next time I have left over sauce...