Chop the ends of the delicata squash, then slice in half lengthwise and scoop out the seeds and discard. Place the hollowed out part of the squash down on the cutting board, and slice into 1/4-inch thick pieces. Put on baking sheet.
Top the squash with oil, and a pinch of salt and pepper. Use your hands to toss and coat each piece well. Then, spread them out flat on the sheet.
Roast in the oven for 20 minutes, flipping over halfway through.
Remove from the oven and serve as a side dish or on top of a warm winter salad.