1. Preheat oven to 350 degrees F.
2. Cut the Acorn squash in half and scoop out seeds (knife with serrated blade works best for me).
3. Put squash in pan, add about a cup of water, cover in foil.
4. Put in oven, cook for about 45 min.
5. Take it out of oven, let cool.
6. Process some basil in a food processor or just cut into small pieces, about 10 leaves or so.
7. When cool, peel squash skin.
8. Put squash in bowl, mix in basil and mash.

If you want a tastier version add butter, salt, garlic, orange zest or whatever is desired when you mix in the basil.