Despite the debate, pineapple on pizza, introduced in Canada in 1962, has gained millions of fans, including Dwayne "The Rock" Johnson, who alongside his appetite for beef pizzas, proudly declared his love for Hawaiian pizza also.

With their natural sweetness and vibrant color, bell peppers add both crunch and flavor to pizzas. A staple in Mediterranean cooking, they became a favorite pizza topping thanks to their versatility. Actor Matthew McConaughey, a self-proclaimed pizza lover, has spoken about his preference for fresh veggies like bell peppers to add a nutritious boost to his slices.

Prosciutto, Italy’s beloved dry-cured ham, is a staple of gourmet pizzas. Prosciutto di Parma has been protected by Italian law for its quality, making it a premium choice. Actor George Clooney, who owns a villa in Italy, is known to enjoy authentic prosciutto-topped pizzas while visiting.

A hearty and flavorful topping, sausage has been a staple on pizzas since Italian immigrants brought their love for spiced meats to the United States in the early 20th century. It was a particular favorite of Frank Sinatra, who often dined at New York’s Italian restaurants and was known to enjoy a classic sausage-topped slice with a glass of red wine, embracing his Italian-American heritage.

Onions add a natural sweetness to pizzas, especially when caramelized. In Sicily, onion-based Sfincione pizza is a beloved tradition, dating back centuries.

The most popular pizza topping in America, pepperoni has been a staple since the early 20th century. Frank Sinatra, a lover of classic Italian-American cuisine, frequently enjoyed a classic pepperoni slice.

A key ingredient in Margherita pizza, fresh basil adds a fragrant, herbal touch that elevates any slice. Italian-American chef Lidia Bastianich has often emphasized that fresh basil is essential for an authentic Italian pizza experience.

Ham has long been a staple topping, especially in the form of Prosciutto e Funghi (ham and mushroom pizza) in Italy. The late Queen Elizabeth II was reportedly a fan of classic ham-and-cheese pizzas, reflecting her appreciation for simple, well-balanced flavors.

Mushrooms add an earthy, umami depth to pizzas, a tradition dating back to early Italian foragers. Actor and foodie Stanley Tucci has frequently praised mushroom pizzas, especially those made with wild, foraged varieties.

Bringing heat and a zesty kick, jalapeños became popular in Mexican-style pizzas. Celebrity chef Guy Fieri has championed spicy toppings like jalapeños, making them a favorite among heat seekers.

Beef-topped pizzas, particularly in the form of steak or ground beef, offer a hearty, protein-packed option. This topping gained popularity in the U.S. with the rise of cheeseburger-inspired pizzas. Dwayne "The Rock" Johnson, known for his high-protein diet, has often shared his love for beef-loaded pizzas during his legendary cheat meals.

Broccoli on pizza might seem unconventional, but its slightly bitter, earthy taste pairs beautifully with creamy cheeses and garlic-based sauces. It became particularly popular in gourmet pizzerias during the 1980s health-food movement, appealing to those looking for a nutritious twist on their slice. Actress Gwyneth Paltrow, known for her love of clean eating, has praised broccoli-topped pizzas as a delicious way to add more greens to her diet.

Chicken pizza became wildly popular in the United States in the 1990s, especially in variations like BBQ chicken pizza, made famous by California Pizza Kitchen. Basketball legend Shaquille O’Neal, who owns several pizzerias, has endorsed chicken as one of his go-to toppings for a high-protein slice.

Figs bring a natural sweetness to pizzas, pairing exceptionally well with tangy cheeses and salty prosciutto. Historically, figs were a delicacy in ancient Rome, often served at lavish banquets. Pop star Taylor Swift, known for her love of baking and gourmet foods, has mentioned fig-based dishes among her favorite flavors.

Bacon on pizza, particularly in carbonara-inspired variations, brings a smoky richness. Anthony Bourdain, a self-proclaimed bacon lover, was thought to have approved of this indulgent choice.

Spinach on pizza, especially when paired with ricotta or feta, creates a sophisticated balance of flavors. This leafy green has been a key ingredient in Italian cuisine since the Middle Ages and was popularized in pizza toppings by gourmet pizzerias in New York. 

A controversial yet growing trend, pickle-topped pizza has gained a cult following in the U.S. It was popularized by food influencers on social media, proving that unconventional toppings can become viral sensations.

Garlic is a fundamental flavor enhancer in Italian cuisine and is often roasted or infused into sauces for pizza. In Naples, Pizza Marinara, made simply with garlic, tomatoes, oregano, and olive oil, dates back to the 18th century. Actress Sophia Loren, a proud Neapolitan, has frequently credited garlic-based dishes as a cornerstone of her Mediterranean diet.

Lobster pizza is a luxurious choice, often found in coastal pizzerias in New England and Italy. High-end chefs like Gordon Ramsay have featured it in gourmet menus, proving that pizza can be both casual and refined.

Sometimes, more is just better. Extra cheese pizza has been a favorite since the early days of New York-style pizza, where the gooey, stretchy mozzarella became iconic. Musician John Mayer has famously declared his love for simple, cheesy pizzas, proving that sometimes, indulgence is key.

Seafood on pizza, particularly shrimp, has become a delicacy in coastal Italian regions. Japan has embraced shrimp pizza as a gourmet option, often pairing it with garlic and mayonnaise. David Beckham, who spent time living in Italy, has been known to enjoy seafood pizzas, reflecting his love for Mediterranean flavors.

Though divisive, anchovies have been a classic pizza topping in Italy for centuries. Pizza Napoletana often features these salty, umami-rich fish. James Gandolfini, best known for The Sopranos, was a known fan of traditional Italian food, anchovy pizza included.

Eggplant brings a rich, meaty texture to pizzas, especially when roasted or grilled. This Mediterranean favorite has been a staple in Italian cuisine for centuries, often found in parmigiana dishes before making its way onto pizzas. Legendary Italian filmmaker Federico Fellini was known for his love of eggplant dishes, and it’s easy to imagine this ingredient making its way onto his ideal pizza.

Fresh arugula on pizza adds a peppery, slightly bitter contrast to rich cheeses and cured meats. A favorite in Naples, Pizza con Rucola is often finished with a drizzle of olive oil for extra flavor. Model Gigi Hadid, who has Italian roots, has been spotted enjoying pizzas topped with fresh arugula, proving that this ingredient adds both sophistication and a health boost.

Drizzling honey on pizza, especially when paired with spicy ingredients like pepperoni, has become a gourmet trend. Michelin-starred chef David Chang has praised the combination of heat and sweetness, helping it gain widespread appeal.