Thinly slice the zucchini, about ¼ inch in width, preferably with a mandolin to ensure a uniform width.
To cook in microwave
Coat a microwave safe plate with cooking spray.
Place zucchini in a single layer on the plate.
Lightly coat the top of the zucchini with olive oil.
Lightly season with salt.
Microwave on high for about 4-5 minutes or until lightly browned. Watch closely to determine the correct cooking time which will vary based upon microwave, width of slices and amount of oil used.
To bake in the oven
Preheat oven to 225 degrees F.
Place zucchini in a single layer on a baking sheet lined with parchment paper.
Lightly coat the tops of the zucchini with olive oil.
Lightly season with salt.
Bake for 40 minutes.
Flip the zucchini slices, coat with olive oil and lightly season with salt.
Bake for another 40 minutes or until zucchini slices are slightly browned.
Notes
Tips: 1) Cut slices in a uniform width 2) Minimally coat with oil, pat off excess oil 3) Lightly season with salt 4) Watch the cooking time closely.