Start by washing and scrubbing the sweet potatoes well, leaving the skin on for extra texture and nutrients. Trim the ends and slice each potato in half lengthwise, then cut each half into quarters or eighths, depending on their size. Keeping them similar in size ensures even cooking and a consistent bite.
Beat the eggs in one bowl until smooth. In another bowl, mix the Parmesan cheese with salt, pepper, garlic powder, parsley, oregano, paprika, and cayenne. Dip each sweet potato wedge into the beaten eggs, coating it fully, then roll it through the Parmesan mixture. Shake off any excess — too much coating can make the texture heavy instead of crisp.
Preheat your oven to 450°F (232°C). Line a baking sheet with foil or parchment and arrange the wedges in a single layer without overlapping. Bake for about 20 minutes, flipping halfway through for even browning. They’re done when the coating is golden and crisp, and the inside is fork-tender. Remove from the oven and serve immediately while hot.