Look for small, sweet pumpkin varieties like Sugar Pie or Cheese or substitute butternut squash. To prepare the pumpkin or squash, steady it on its side on a rigid cutting surface and, using a large, sharp knife, cut it in half through the stem end. (If the peel is thick, tap the knife with a mallet.) Scoop out the seeds and fibers with a large metal spoon. Finally, peel and cut as desired.