Preheat your oven to 400°F (200°C).
In a large bowl, combine the cubed butternut squash, olive oil, salt, black pepper, cinnamon, and nutmeg. Toss until the squash is evenly coated.
Spread the seasoned squash in a single layer on a large baking sheet.
Roast in the preheated oven for 25-30 minutes, or until the squash is tender and lightly browned, stirring halfway through for even cooking.
In the last 5 minutes of roasting, add the cranberries to the baking sheet.
Remove from the oven and sprinkle the crumbled feta cheese over the top.
Return to the oven for an additional 5 minutes to warm the feta.
Remove from the oven, garnish with chopped parsley if desired, and serve warm.