Hashbrown Casserole is a cozy, cheesy bake that’s perfect for brunch, weeknights, or potlucks. This easy recipe uses frozen hashbrowns and pantry staples to deliver golden-crisp topping and a creamy, comforting center without fuss. Try it for holiday sides or simple family dinners that everyone will request again.
Why You’ll Love This Hashbrown Casserole
- Crowd-pleasing comfort food with cheesy, crispy topping.
- Fast prep using frozen hashbrowns and pantry ingredients.
- Great for meal prep and reheats well for leftovers.
- Family-friendly flavors that pair with many mains.
- Easy to customize with add-ins or swaps for dietary needs.
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Ingredients Needed
-
Potatoes
- 32 oz Frozen hashbrowns — Do not thaw
-
Dairy & Fats
- 1 cup Sour cream — Full-fat
- 10.5 oz Cream of chicken soup — Condensed
- 2 cups Shredded cheddar cheese — Divided: 1½ cups in base, ½ cup topping
- 6 tbsp Butter — Divided: 4 tbsp in base, 2 tbsp topping
-
Veggies & Mix-ins
- 1 Yellow onion, diced — About 1 cup
- ½ packet Onion soup mix — Secret ingredient
-
Seasoning
- Salt & pepper — To taste
-
Topping
- 1 cup Crushed cornflakes — Or crushed crackers
Step-by-Step Instructions
- Preheat oven to 350°F and grease a 9×13-inch baking dish with nonstick spray or a little butter.
- In a large bowl, combine sour cream, condensed cream of chicken soup, diced yellow onion, onion soup mix, salt, and pepper.
- Stir in the frozen hashbrowns and 1½ cups shredded cheddar until evenly coated.
- Spread the hashbrown mixture evenly into the prepared baking dish.
- Sprinkle the remaining ½ cup cheddar over the top, dot with 2 tbsp melted butter, then evenly scatter the crushed cornflakes.
- Cover the casserole tightly with aluminum foil and bake covered for 45 minutes, then remove foil and bake an additional 5–10 minutes if you want extra browning.
Serving Suggestions Hashbrown Casserole
- Serve alongside roasted or grilled chicken and steamed green beans.
- Top with chopped chives and a dollop of extra sour cream for garnish.
- Pair with a crisp green salad and light vinaigrette for balance.
- For a Tex-Mex meal, add sliced jalapeños and serve with salsa verde chicken casserole and fresh pico.
- Offer hot sauce or ketchup on the side for picky eaters.
Tips for Success Hashbrown Casserole
- Keep the hashbrowns frozen until mixing to avoid a watery casserole.
- Press the mixture firmly into the dish to ensure even baking and fewer air pockets.
- If topping browns too quickly, tent with foil to prevent burning.
- Make ahead: assemble and refrigerate up to 24 hours, then bake as directed.
- For a veggie-forward twist and inspiration, check guilt-free zucchini pizza casserole for ideas on adding vegetables.
Variations
- Add cooked diced ham or crumbled bacon for a meaty version.
- Make it spicy: fold in chopped jalapeños and use pepper jack cheese.
- Dairy-light option: substitute Greek yogurt for sour cream and a dairy-free cream soup.
- Add veggies like bell peppers or broccoli florets for extra nutrition.
Hashbrown Casserole
A cozy, cheesy bake perfect for brunch, weeknights, or potlucks, made with frozen hashbrowns and pantry staples.
Ingredients
Potatoes
- 32 oz Frozen hashbrowns — Do not thaw Use directly from the freezer.
Dairy & Fats
- 1 cup Sour cream — Full-fat
- 10.5 oz Cream of chicken soup — Condensed
- 2 cups Shredded cheddar cheese — Divided: 1½ cups in base, ½ cup topping
- 6 tbsp Butter — Divided: 4 tbsp in base, 2 tbsp topping
Veggies & Mix-ins
- 1 medium Yellow onion, diced — About 1 cup
- ½ packet Onion soup mix — Secret ingredient
Seasoning
- Salt & pepper — To taste
Topping
- 1 cup Crushed cornflakes — Or crushed crackers
Instructions
Preparation
- Preheat oven to 350°F and grease a 9x13-inch baking dish with nonstick spray or a little butter.
- In a large bowl, combine sour cream, condensed cream of chicken soup, diced yellow onion, onion soup mix, salt, and pepper.
- Stir in the frozen hashbrowns and 1½ cups shredded cheddar until evenly coated.
- Spread the hashbrown mixture evenly into the prepared baking dish.
- Sprinkle the remaining ½ cup cheddar over the top, dot with 2 tbsp melted butter, then evenly scatter the crushed cornflakes.
Baking
- Cover the casserole tightly with aluminum foil and bake covered for 45 minutes.
- Remove foil and bake an additional 5–10 minutes if you want extra browning.
Notes
Keep the hashbrowns frozen until mixing to avoid a watery casserole. Press the mixture firmly into the dish to ensure even baking and fewer air pockets. If topping browns too quickly, tent with foil to prevent burning. Make ahead: assemble and refrigerate up to 24 hours, then bake as directed. For a veggie-forward twist, consider adding vegetables.