Preheat oven to 400 degrees. Spray baking sheet with cooking spray or line pan with parchment paper. Lay onion rings in a single layer on pan and drizzle with EVOO. Bake/fry in oven, turning onion rings occasionally so as not to burn. (If you fry okra, green tomatoes, something of this kind that is breaded, pour about 1/4 cup EVOO and about 1 Tablespoon canola oil into a cast iron skillet and preheat oil before adding food to skillet - olive oil will burn easily and if you add a small amt. of canola or other type oil, it will help to keep it from burning.) Cook until desired crispiness. Drain any remaining oil from food onto a paper towel lined dish. Season with desired seasonings immediately.