Mashed Squash with Caramelized Onions is a delicious and comforting side dish that combines the sweetness of butternut squash with the savory flavor of caramelized onions. The squash is roasted until tender and then mashed with butter and cream for a creamy and smooth texture. The caramelized onions add a rich and slightly sweet flavor that pairs perfectly with the squash. This dish is perfect for fall and winter gatherings or as a side dish for roasted meats.