In pretty much all new Gamerias, each holiday has 6 exclusive ingredients. However, if the ones with less were to add more, what kinds would they be? The instances are:
Pizzeria: 4 (a crust, a sauce, and 2 placeable toppings)
Taco Mia: 5 (a taco shell, meat, sauce, and 2 pourable toppings)
Pancakeria: 4 (a syrup, shaker, placeable topping, and drink)
Wingeria: 4 (2 sauces, a dip, and a placeable topping)
Hot Doggeria: 5 (a bun, sauce, pourable topping, soda, and popcorn)
Pastaria: 4 (a pasta shape, sauce, shaker, and placeable topping
Cheeseria: 5 (a bread, cheese, sauce, placeable topping, and fry topping)
Bakeria: 5 (a filling, crust shape, syrup/whipped cream, flat placeable topping, and non-flat placeable topping*)
Scooperia: 5 (cookie mixable, ice cream flavour, syrup, placeable topping, and ingredient that doubles as a cookie mixable/shaker)
Let's see what ingredient types could be used to bring all these up to 6!
*St. Paddy's Day has 2 flat placeable toppings and no non-flat ones