Pumpkin puree is usually made from other types of winter squash (including butternut), not from pumpkins, but it is slightly sweeter and thinner in texture. (seasonalandsavory.com)
Plus, many types of winter squash turn into their own serving vessel. (yupitsvegan.com)
Stage one generally consists of very runny grain cereals such as rice or barley, as well as certain types of winter squash and soft, easily digestible foods. (omaby.com)