When I cook homemade pizza I usually go for Prosciutto, Arugula, Red Onion, Green Peppers and Portobello mushrooms... Lots of cheese and black pepper. Sauce with lots of garlic, preferably cook in low heat for 4-8 hours, dice the garlic with a razor just like depicted in Goodfellas haha. A good idea is also to put the cooked sauce in a blender with portobello mushrooms and voila.
Bacon, Italian sausage, ground meat, pepperoni, salami, diced cherry tomatoes, spinach, all great ingredients as well.