"Canned pumpkin" refers to pumpkin that has been cooked, blended, and preserved in a can. It is commonly used as an ingredient in baking and cooking recipes. Full definition
* if you don't have time to roast, cube, and freeze your pumpkin ahead of time there's always the option of using canned pumpkin puree. (vigorandsage.com)
I admit that I normally use canned pumpkin puree in this recipe, as I find it almost as good as fresh. (joyofbaking.com)
Another option if you're in a hurry is substituting two cups of canned pumpkin for the roasted butternut squash. (insonnetskitchen.com)