Follow these simple steps to create delicious Jamie Oliver Potato Salad:

1. Boil Potatoes: Place the new potatoes in a large pot of salted water. Bring to a boil and cook for 15-20 minutes until tender.
2. Prepare Green Beans: While the potatoes are cooking, trim the ends of the green beans and blanch them in boiling water for 2-3 minutes. Drain and rinse under cold water to stop the cooking process.
3. Chop Vegetables: Halve the cherry tomatoes, thinly slice the red onion, and chop the parsley finely.
4. Mix Dressing: In a small bowl, whisk together the juice of the lemon, olive oil, salt, and pepper.
5. Combine Ingredients: Once the potatoes are cooked, drain and let them cool slightly. Cut them into halves or quarters, depending on their size.
6. Combine Everything: In a large bowl, combine the potatoes, green beans, cherry tomatoes, red onion, and feta cheese. Drizzle the dressing over the top and toss gently to combine.
7. Garnish: Finish with fresh parsley for an extra pop of flavor and color.

These steps will guide you in creating this incredible potato salad effortlessly.