Preheat your oven to 425°F (220°C).
Prepare the butternut squash by peeling, deseeding, and cutting it into 1-inch cubes.
In a large bowl, combine the butternut squash, olive oil, salt, black pepper, and dried thyme, tossing to coat evenly.
Spread the squash in a single layer on a baking sheet.
Roast the squash for 20–25 minutes, stirring halfway through.
After 20–25 minutes, add the cranberries to the baking sheet and give it a gentle toss.
Return to the oven and roast for an additional 10-15 minutes, or until the squash is golden and tender.
Remove from the oven, transfer to a serving dish, and sprinkle with feta cheese.
Serve warm and enjoy!