In a large 12-inch nonstick skillet, heat the oil or butter over medium heat. Add the green beans and cook for 2-3 minutes, stirring often, to crisp up the edges of the beans just slightly.
Pour in the broth and bring the beans/broth to a simmer. Cover the skillet and cook anywhere from 6-10 minutes, depending on how tender you like your green beans. Keep an eye on the skillet - if it is simmering too vigorously and the liquid evaporates out, add a bit more as needed.
Season with salt and pepper to taste and serve immediately.
Notes
Beans: after trimming the ends of the green beans, you can cut them into 1- or 2-inch lengths, but I usually leave them long so I can maybe, hopefully teach my kids the importance of cutting up food on their plate before shoveling it into their mouths.