There is black pepper in this recipe but no salt, which does seem kind of strange. I tested the recipe with a bit of salt, but because the cheeses and sausage are already salted, it really doesn't need it. But, if you want to add some other ingredients to suit your tastes, go for it! Some good mix-ins would be crushed garlic, red pepper flakes (if you like spice!), or chopped parsley.