Start by preheating your oven to 425°F. Wash the sweet potatoes thoroughly and pat them dry to remove any excess moisture. Slice them into ⅓-inch thick rounds for even roasting and a perfect crisp-soft texture.
Place the rounds in a large bowl or directly on the sheet tray. Drizzle with olive oil and sprinkle the spice mix evenly. Toss gently to coat each round thoroughly, ensuring every piece gets a touch of cinnamon, smoked paprika, cumin, coriander, salt, and pepper.
Arrange the rounds on the baking sheet in a single layer, leaving space between them. Roast for 20 minutes, then flip each piece and continue cooking for another 20-25 minutes. You want golden edges with a soft, tender center.
Once roasted, transfer the sweet potatoes to a serving platter. Drizzle with honey, crumble feta generously over the top, and sprinkle with fresh herbs like chives or parsley. Serve immediately for the best texture and flavor.