I'm not a fan of frozen pizza at all, but I keep trying in hopes of finding a good one. I did find a deep dish frozen that is really good, the flavors pop, very good pie, but locally only at Aldi and only once every few months. Gino's East of Chicago. I buy a bunch when I do see them.
Ah - I am only referring to the ones JUST inside the door, across from the produce - and they're just chilled, not frozen.
I think they're called "Mamma (something)" - and they are awful. But - because what I said before - no flavor at all.
MANY YEARS ago, I delivered pizza for a startup in Massachusetts. Their "secret" was - they would experiment from time to time with different cheese mixes and offer discounts for customers to comment on the different ones they tried.
Ditto the dough - they'd add seasonings - take them out - maybe add sugar - until they found winning combinations.
Prefab pizzas' cheese and dough have no flavor at all.