Fresh mushrooms, fresh mozzarella, fresh basil, over crushed San Marzano tomatoes.  Maybe a dusting of grated pecorino or parmigiano if we’re making it at home.  (My husband is the pizza chef.)
 
For take-out/delivery, it depends on the source, but I confess to a weakness for mushrooms and breakfast bacon (real bacon).  Alternatively, I like mushroom-onion-green pepper.