The choice of toppings on a pizza can vary widely depending on regional preferences and personal tastes. However, some meats are considered less common or culturally unconventional for pizza toppings. What meat "doesn't belong" on pizza can be a subjective matter, but here are some examples of meats that are generally less common or may not fit well with the traditional pizza flavor profile:
Liver: Liver is a strong-flavored organ meat that might overpower the other flavors on a pizza and not complement the overall taste.
Tripe: Tripe is the edible lining from the stomach of various animals and is not commonly used as a pizza topping due to its distinct texture and flavor.
Head Cheese: Head cheese is a terrine made from the head of a pig or calf, and its gelatinous texture and unique taste may not be suitable for pizza.
Tongue: Tongue is another organ meat that has a distinctive flavor and texture, which might not blend well with the typical pizza ingredients.
Brain: Brain is an unconventional topping for pizza and might not appeal to a broad audience due to cultural considerations.
Blood sausage: Blood sausage, also known as black pudding, is a sausage made from animal blood and is not commonly used as a pizza topping.
Remember that taste preferences can vary greatly, and what may not be popular in one region or culture might be celebrated in another. Pizza is a versatile dish, and people enjoy experimenting with various toppings to suit their individual tastes. Ultimately, the choice of toppings on a pizza comes down to personal preference and creativity.