Preheat your oven to 400°F (200°C).

In a large mixing bowl, combine diced potatoes with olive oil, lemon zest, lemon juice, thyme, salt, and pepper. Toss until thoroughly coated.

Crumble the feta cheese over the potato mixture in the baking dish, ensuring it covers the potatoes.

Bake for 30-35 minutes until the potatoes are tender and the feta is slightly golden and bubbly.

Remove from the oven, cool slightly, and serve warm.