Tomatoes in processed form are better for you than raw ones are as the antioxidant benefits are raised. This goes for ketchup as well.
Personally I make my own pizzas from fresh veg and by the time I've finished adding onions, garlic, mushrooms, peppers and chillis, you'll find it contains more than one of my five a day with carbs for energy from the dough and protein from the cheese as well, pizza covers the basic nutritional bases.
The last time I looked, all are needed for a healthy diet......