Sauté the Green Beans: Heat the olive oil in a large, deep skillet or wok over medium heat. Add the green beans and sauté for 5-7 minutes, stirring frequently, until they are lightly browned in some places and tender-crisp.
Add Olives, Tomatoes, and White Wine: Add the chopped Kalamata olives and halved cherry tomatoes to the skillet. Deglaze the pan by pouring in the white wine. Let it simmer for 2-3 minutes, until most of the liquid has evaporated and the tomatoes start to soften.
Season and Add Feta: Season with salt and freshly ground black pepper. Sprinkle the crumbled feta cheese evenly over the vegetables. Reduce the heat to low, cover the skillet, and let it cook for 2-3 minutes, allowing the feta to soften slightly.
Serve: Remove from heat and serve warm as a side dish or a light main course. Enjoy!
For a relaxing atmosphere in the kitchen I recommend my personal Elle Republic: Chilled Out Kitchen Tunes Playlist on Spotify.