Why do you think pizza is bad for you? I incorporate pizza in my diet frequently. The main limiting factor with it for me is keeping carbs down, but as someone else pointed out: a risotto is also carb heavy; that rice is pretty much all carbs.

Pizza can be massively unhealthy if you buy from somewhere that's full of sodium and soaked in grease, but there are plenty of ways of making pizzas that are fine to eat every day even.

Heck, squid works just fine on a thin pizza base too, as do mussels and prawn if you want a nice seafood mix.