Preheat the oven to 425°F.
Wash and scrub the sweet potato, then cut it into wedges ensuring uniform thickness.
Place the sweet potato wedges in a bowl, drizzle with 1/2 tsp olive oil, and season with salt, pepper, garlic powder, and dried oregano. Toss well to evenly coat.
On a baking sheet lined with parchment paper, arrange the sweet potato wedges in a single layer.
In a separate bowl, toss the cooked chickpeas with a pinch of salt, pepper, and a little extra garlic powder if desired. Spread them on a small section of the baking sheet or a separate one.
Roast the sweet potato wedges and chickpeas in the preheated oven for 25-30 minutes, turning halfway through to ensure crispness, until the wedges are tender and golden and the chickpeas are slightly crispy.
While roasting, prepare the Greek yogurt dip by spooning the yogurt into a small bowl. Season lightly with a pinch of salt and pepper.
Once roasted, plate the sweet potato wedges and chickpeas. Top with crumbled feta cheese and serve with the Greek yogurt dip on the side.
Enjoy this balanced, flavorful dish as a nutritious breakfast, lunch, or dinner option.