Place the green beans in a large pot of boiling salted water and cook for about 3 to 4 minutes, until bright green and still crisp to the bite.
You can stop here if you are preparing this in advance. I would recommend draining your green beans, then immediately adding them to an ice bath to stop the cooking process.
Meanwhile, cook the almonds in the olive oil over medium heat until lightly browned, 2 to 3 minutes.
Drain and add the steamed beans to the skillet, season with salt and pepper to taste. Add the unsalted butter and lemon juice, and sauté the beans for 1 to 2 minutes, until well coated with the lemon and butter and heated through.
Serve immediately.
Notes
For a better cooking experience, ensure that the green beans are all of the same size. This will promote even cooking.
Giangi's Kitchen provides nutritional information, but these figures should be considered estimates, as a registered dietician does not calculate them.