Mashed Boo-Tatoes are a really cute side dish idea from Martha Stewart. Trader Joe’s sells frozen mashed potatoes, or you can make your own. Simply “pipe” out ghosts using a piping bag if you have one, or just make your own using a Ziploc bag with the corner snipped off. For these, you’ll want to cut a fairly generous hole, about 1/2 inch in diameter. Squeeze out the mashed potatoes, lifting the bag as you go along to create an upright ghost. You can wet your fingers and create a pointy head if it doesn’t form naturally. Black sesame seeds or small bits of black olive work well for eyes.
Also shown here are little pumpkin shaped mashed butternut squash, or you could also use mashed sweet potatoes, yams, or pumpkin. Pipe out a ball of squash, and decorate with pecan pieces for stems and herbs such as dill, cilantro, or parsley for leaves.