[Enhancement] Allow vanilla foods on pizza

[DeadlyAccurate]

It would be quite useful to be able to add sliced chicken, beef, and the Minecraft veggies to pizzas. Even cooler would be adding any foods through a config or datapack from other mods (like chocolate from Create to make dessert pizza).

[s4sutler100]

Please allow fish on pizza

[Tiviacz1337]

It's possible to add items to toppings tags via datapacks. As for now adding custom toppings is not available.