Cut the squash in half, scoop out the goo and lay face down in a pan with a ¼ inch of water in the bottom. Bake 350 degrees for 25-30 min. Remove when squash can be easily pierced by a fork. Meanwhile, sauté hamburger and other ingredients. After hamburger is fully cooked, drain grease of course and add into the little acorn squash bowls you have just baked. Yummy!