Preheat your oven to 400°F.
In a large bowl, toss the pumpkin cubes with olive oil, salt, black pepper, cumin, and smoked paprika until evenly coated.
Spread the seasoned pumpkin in a single layer on a baking sheet.
Roast for 25-30 minutes, or until the pumpkin is tender and lightly caramelized, flipping halfway through for even cooking.
While the pumpkin is roasting, prepare the yogurt sauce by mixing together the Greek yogurt, lemon juice, and minced garlic in a small bowl. Season with salt to taste and set aside.
Once the pumpkin is done, remove it from the oven and let it cool slightly.
To serve, arrange the roasted pumpkin on a platter, drizzle with the yogurt sauce, and sprinkle with toasted pine nuts and chopped parsley.