Preheat oven to 400 degrees. Coat baking sheet with nonstick cooking spray.

Thinly slice all radishes. Then, using a paper towel, blot radish slices to remove any excess moisture. Transfer radishes to mixing bowl, add avocado oil, and toss until radishes are coated.

Place radish slices in even layer atop prepared baking sheet, then lightly sprinkle radishes with salt.

Transfer baking sheet to oven and bake for 15 minutes, rotating radishes around baking sheet every 5-7 minutes. (Keep in mind that radishes in center of baking sheet will cook faster than outer edges.)

Remove baking sheet from oven and serve chips immediately with a garnish of chopped fresh or dried parsley.