How to Make It
Heat a large skillet over medium-high heat. Add the oil and then stir in the onions. Cook for about 2 minutes or until the onions are soft.
Add the garlic and green beans and stir occasionally until the green beans are tender, 3 to 5 minutes.
Stir in the Worcestershire sauce and apple cider vinegar. Cook until heated through. Season with salt and pepper.
Toss with almond slivers and Manchego and serve warm.