Chef John's Butternut Bisque
If I'd intended this bisque to be a main course, I would probably have roasted the squash first. When you roast butternut squash, you caramelize and concentrate the flesh, and get something sweeter, starchier, and richer. That's perfect if you're enjoying it as a meal, but maybe not such a great thing if it's going to be followed by additional courses.
If you don't have an immersion blender, you can blend the squash mixture in batches in a regular blender. Just be careful not to burn yourself.