Remove seeds (don't throw them out, save them for roasting)
Cut squash into ½ inch slices
Place on sheet pan.
Coat with some olive oil and salt, pepper, and garlic powder to taste
Bake in the oven 12-15 minutes, then turn and bake another 12-15 minutes until they have darkened along the edges and soft in the middle
Notes
The "fries" in my picture look black around the edges. Don't worry even if they are dark, they didn't taste burned even in the slightest. I thought they were perfectly cooked.