Halve squash and place cut side up in a baking pan with 1/2" of water. bake uncovered for about 45 minutes. Squash won't be fully cooked, but slightly tender. Cool.Using a vegetable peeler, peel of outer skin and scrape inside to remove seeds and stringy fibers. Cut into cubes. Should yield about 6 cups. (I think you can actually cheat on this and get pre-cubed squash in the produce section of your market).