Preheat the oven to 425°F. Spray a baking sheet with non-stick cooking spray and set aside.
Slice the top and bottom off of the delicata squash, and then slice it in half lenghtwise.
Use a metal spoon to scrape out the inside stringy parts and seeds. These can be discarded. Slice the squash into thin strips.
Add cooking oil and garlic powder to a large bowl and mix together. Add in the sliced squash. Season with salt and pepper and toss until the spices are evenly coated.
Place the squash slices onto greased baking sheet in a single layer.
Bake for 20 minutes then flip with a pair of tongs or a fork. Cook another 10-12 minutes.
Squash will be cooked when edges start to brown and squash is soft when poked with a fork.
Add to a serving dish and enjoy! The skin on delicata squash can also be eaten.