When sautéed in olive oil, escarole needs little more than a bit of garlic and a touch of salt and pepper to make a satisfying side dish.
Heat oil in a large high-sided skillet over medium-low heat. Add garlic; cook, stirring occasionally, until pale golden, about 2 minutes. Add escarole, salt, and pepper. Raise heat to high; cook, stirring occasionally, until escarole is soft and white parts are tender, 6 to 8 minutes. Season with salt, if desired. Serve immediately.