Bake sliced almonds in a shallow pan at 350° for 5 to 10 minutes or until toasted. Set almonds aside.
Split beans lengthwise.
Cook beans in boiling water to cover in a Dutch oven 4 minutes or until tender; drain.
Melt butter in Dutch oven; add almonds, beans, lemon juice, salt, and pepper, tossing to coat. Serve immediately.
It's very easy and great but if you want them to taste even classier then add olive oil to the water instead of using butter!