This Easy Butternut Squash Casserole is a comforting and flavorful dish featuring tender butternut squash, cauliflower, and red onions blended with Parmesan cheese and celery soup, all topped with melted aged cheddar cheese. Perfect as a side or a vegetarian main, it is simple to prepare and bakes to a golden, bubbly perfection.
Keywords: butternut squash casserole, easy casserole recipe, vegetarian casserole, baked squash dish, comfort food