1.Cook potatoes - place potatoes in a pot of cold water, and bring to the boil. Boil 20 minutes, or until potatoes are tender. You know they are cooked when you can stick a knife in them and the knife goes straight through.
2.Combine harissa spice, olive oil, salt and pepper and lemon juice in a small bowl and whisk until combined.
3.Once potatoes are cooked, drain water and roughly chop potatoes in half.
4.Add harissa mix and spring onions/green onions to potatoes and stir.