Good news: Olive oil can take the heat
As long as oil is kept below its smoking point, flavor and nutrition are intact. More important is how you store the oil. Fats and phytonutrients stay stable for up to two years in unopened opaque bottles stored at room temperature and away from light. Heat, light, and air drastically affect stability. Store oil in a room-temp cupboard, and use within six months.
In this simple side dish, extra-virgin olive oil adds great fruity flavor, and sautéing over high heat doesn’t burn away the oil’s healthful antioxidants.