Can I make this casserole ahead of time?
Yes. Assemble the casserole in the baking dish, cover, and refrigerate for up to 24 hours before baking. Add 5–10 minutes to baking time if baking from cold.
Do I need to thaw the hash browns?
Yes, thaw the frozen hash browns first and squeeze out excess moisture to avoid a watery casserole.
Can I use fresh potatoes instead of frozen hash browns?
You can, but frozen hash browns are pre-shredded and cook more evenly. If using fresh, shred finely, blanch briefly, and drain well to remove starch.
What cheese works best for this recipe?
Extra sharp cheddar melts smoothly and provides strong flavor. Mild cheddar works but will be less flavorful.
How do I know when the casserole is done?
Bake until the top is golden brown and the edges bubble. A knife inserted in the center should come out clean.