Preheat the oven to 400 degrees Fahrenheit (200 degrees Celsius) and line a baking sheet with parchment paper.
In a mixing bowl, toss the sweet potato rounds with olive oil, sea salt, and black pepper until evenly coated.
Arrange the rounds in a single layer on the prepared baking sheet, ensuring they do not overlap.
Roast for 20 minutes, flipping once at the 10-minute mark, until the potatoes are tender and golden-brown.
Remove the tray from the oven and top each sweet potato round with a generous portion of crumbled feta cheese.
Drizzle the honey evenly over the cheese-topped rounds and sprinkle with fresh thyme.
Return the baking sheet to the oven for an additional 5 minutes until the feta is soft and the honey is bubbling.
Garnish with toasted pumpkin seeds for added protein and serve immediately.