Preheat oven to 325°F and line baking sheets with parchment paper.
Wash sweetpotatoes and slice into paper-thin rounds. You can use a knife or a mandolin slicer works even faster.
Toss sweetpotato slices with 2 tablespoons olive oil, lay them in a single layer on baking sheets, and bake for 25-30 minutes, until crisp and golden around the edges.
While the sweetpotatoes are baking, make the feta dip: In a food processor or blender, puree feta, yogurt, lemon juice, and remaining 2 tablespoons olive oil until smooth. Put into serving bowl.
Remove sweetpotatoes from the oven and let cool for 5 minutes.
Assemble the snack board:
- Put the bowl of feta dip on a cutting board or tray. Top with pistachios and drizzle of hot honey.
- Arrange the sweetpotato chips, peapods, radishes, and hard-boiled eggs around the dip.