Pizza with funghi and olives. Pizza with thuna and onion. Pizza with Salame, in small quantities. Pizza with fresh parika or pickled paprika (and only paprika). Pizza with spinacci and feta. Pizza with shrimps. Pizza with pepperoni.
All this works well.
What has it all in common?
Its just few ingredients, not many wildly mixed.
My tolerance ends when I read about pizza with Bratwurst. With brown sauce. With Spaghetti. Sweet fruits. Ketchup and curry. Marshmallows. Chicken wings. Or pineapple or kiwi.