Preheat your oven to 400°F (200°C).
In a large bowl, toss the pumpkin cubes with olive oil, salt, black pepper, cumin, and paprika until evenly coated.
Spread the seasoned pumpkin on a baking sheet in a single layer. Roast in the preheated oven for 25-30 minutes, or until the pumpkin is tender and lightly browned, stirring halfway through.
While the pumpkin is roasting, prepare the yogurt sauce by mixing the Greek yogurt, lemon juice, minced garlic, and a pinch of salt in a small bowl.
Once the pumpkin is done, remove it from the oven and let it cool slightly.
To serve, place the roasted pumpkin on a serving platter, drizzle the yogurt sauce over the top, and sprinkle with toasted pine nuts and chopped parsley.