Melt butter in a large skillet over medium heat. Add green beans and toss to coat. Cook for 4 to 5 minutes, stirring frequently. Transfer cooked green beans to a plate.
Add almonds and garlic to pan. Cook for a minute or two until fragrant.
Return green beans to pan and mix in with almonds. Season with salt and pepper.
May be made up to two or three days ahead. To reheat, simply sauté in a tablespoon or two of butter until hot. The prepared dish can also be microwaved for 2 to 3 minutes on high stirring once in the middle of cooking.For a little extra flavor, you can sprinkle in some fresh-grated parmesan cheese too.