Missing a main ingredient for this recipe

I would also probably go with 2 small to medium sweet potatoes. This recipe is intended to make 4 servings and a half a sweet potato per person seems reasonable based on the volume of the other primary ingredients (sausage meat, beans, mushrooms, stock).

There's a Jamie Oliver recipe on the Internet for a very similar dish that is intended to serve 4-6 people and he also calls for 2 sweet potatoes.

Is it this recipe? https://food52.com/recipes/38222-sweet-potato-chili-with-sausage-white-beans
I don’t see it either, but the writer says “potatoes” in the instructions, so it’s probably at least two. And as aargersi says, taste as you go and add what you need.

I can’t find anything on line but based on the volume of other ingredients and the fact that the directions refer to potatoes (plural) I’d say 2 smaller or one large sweet potato peeled and diced. It’s not fussy baking so you can’t really mess it up! Have fun and taste as you go!