One of the most common ways to prepare butternut squash is roasting. Kabocha has an exceptional sweet flavor, even sweeter than butternut squash. Around 2009, Barber was involved in developing a miniature butternut squash. Pumpkins, zucchini, acorn squash, butternut squash, others. Squash used to prepare the soup commonly includes acorn and butternut squash. It has two to three times more beta-carotene than butternut squash. The flavor is more prominent and sweeter than butternut squash, and similarly nutty. Similar pies are made with butternut squash or sweet potato fillings. Butternut squash will store for two to three months. Other vegetables commonly used in gratin dishes include cauliflower, spinach, and butternut squash. The calabaza can be substituted with butternut squash or kabocha, especially in western versions.