Personally, I'm partial to a thin crust cheese pizza folded and dipped into either hot sauce or ranch. But I also enjoy modest amounts of meat, greens and pineapple.
The best pizza place near me does a goat's cheese, balsamic onion, and rocket one that's absolutely stellar. To be honest though I'm not super fussy about toppings, I like this pizzeria more because whatever you order, they use good ingredients and cook it perfectly
Assuming this is a serious question and not just continuing the joke in the other replies, it's the plant that North American varieties of English call arugula. Both names derive from the Latin eruca, they just took different paths to get to the different varieties of English