Cut the acorn squash in half horizontally and remove the seeds.
Mix all the chopped produce together in a mixing bowl with the sage and divide between the two halves.
Place a small pat of butter or coconut oil on top of each half for extra flavor.
Bake in a large casserole dish for about 1 hour, or until the squash is easily pierced with a fork or knife. (My squash was very large and thick, so it took 1 1/2 hours to bake.
Notes
Please note that the nutrition data given here is a ballpark figure. Exact data is not possible.