This creamy, cheesy casserole is the ultimate comfort food made easy. Assemble it ahead of time and let your slow cooker do the work, resulting in a golden, bubbly dish perfect for brunches, potlucks, or cozy family dinners.
For a make-ahead version, assemble the casserole (minus the topping) up to 24 hours in advance. Store covered in the refrigerator, then cook as directed, adding an extra 30 minutes to the cook time. For a vegetarian option, use cream of mushroom soup. Thawing the hash browns is crucial to prevent a soggy casserole.
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