Harvest Vegetable Casserole is a hearty and nutritious dish that celebrates the flavors of the fall season. Packed with a variety of colorful vegetables like butternut squash, sweet potatoes, Brussels sprouts, and carrots, this casserole is a perfect side dish or main course for vegetarians. The vegetables are roasted to perfection and then baked with a creamy and flavorful sauce made with herbs and spices. This casserole is not only delicious but also a great way to incorporate seasonal vegetables into your diet.