This confetti bacon hash brown casserole is a crowd-pleasing dish that combines the comforting flavors of crispy bacon, cheesy hash browns, and colorful vegetables. The creamy sauce made with sour cream, condensed soup, and cheddar cheese adds richness and depth to the dish. Topped with a crunchy breadcrumb and Parmesan cheese crust, this casserole is perfect for brunch, potlucks, or as a side dish for any meal.