Creating Potato and Feta Salad is simple. Follow these straightforward steps:

1. Cook the Potatoes: Begin by boiling a pot of salted water. Add the potatoes and cook until fork-tender, about 15 minutes.
2. Drain and Cool: Once cooked, drain the potatoes and let them cool for a few minutes.
3. Prepare the Dressing: In a small bowl, whisk together olive oil, red wine vinegar, Dijon mustard, salt, and pepper.
4. Chop Ingredients: While the potatoes are cooling, chop the cherry tomatoes, red onion, and parsley.
5. Cut Potatoes: Once cooled, cut the potatoes into bite-sized pieces.
6. Combine Ingredients: In a large mixing bowl, combine the potatoes, feta cheese, cherry tomatoes, red onion, and parsley.
7. Add Dressing: Drizzle the prepared dressing over the salad and gently toss to combine, ensuring everything is coated.
8. Taste and Adjust: Taste the salad and adjust the seasoning with more salt, pepper, or vinegar as needed.
9. Serve: Allow the salad to sit for about 5 minutes before serving to let the flavors meld together.

These steps will guide you in creating this incredible Potato and Feta Salad effortlessly.