01 - Preheat the oven to 425°F. Line a baking sheet with parchment paper for easy cleanup.
02 - Toss sweet potato rounds with olive oil, smoked paprika, salt, and black pepper until evenly coated. Arrange in a single layer on the prepared baking sheet.
03 - Roast for 20-25 minutes, flipping halfway through, until sweet potatoes are golden and tender. Allow to cool slightly before assembling.
04 - While sweet potatoes roast, whisk together parsley, basil, chives, olive oil, lemon zest, lemon juice, garlic, salt, and pepper in a small bowl until well combined.
05 - Arrange roasted sweet potato rounds on a serving platter. Top each round with crumbled feta, then drizzle with honey.
06 - Spoon herb drizzle over each crostini and sprinkle with chopped pecans or walnuts if using. Serve immediately, garnished with additional fresh herbs if desired.