Line zucchini slices (as shown). Try not to have too much overlapping zucchini, they'll be soggy if they don't cook all the way through.
Brush olive oil lightly, sprinkle with spices of your choice. Place in preheated oven for ten minutes, rotate and let bake for an additional 15 minutes. Make sure to keep an eye on them.
Let cool for 5 minutes and enjoy! It's best to eat them fresh out of the oven, they don't keep well.
Notes
I made a mixture that consisted of pepper, nutritional yeast and paprika — it was yummy!