Cook the baby new potatoes in a pan of salted boiling water until just tender. Drain well.
Heat the olive oil in a pan over a medium heat. Add the butter beans and cook for 2–3 minutes.
Add the potatoes and butter, then toss together until warmed through and lightly glazed.
Season with sea salt and cracked black pepper, then finish with lemon juice.
Serve topped with the pea shoots.