This is how I make acorn squash. Cut them in half stem end to stem end and scoop out the seeds.They set better on the tray after you turn them over cut this way. Preheat oven on 375. Put foil on a flat sheet. Bake squash side down for 45 minutes, turn over and put a pat of butter, some brown sugar, salt and pepper in the hole. Put back on the over for 15 minutes, and enjoy!