Cheesy Potato Casserole Recipe tastes rich, creamy, and ultra-cheesy with tender potatoes and a golden, crunchy topping. It suits busy weeknights and potlucks, and the whole dish takes about 65 minutes with just 15 minutes of hands-on prep. I first baked it for my Little League team party, and the pan came back scraped clean.
Why Choose This Tasty Cheesy Potato Casserole Recipe
Tasty Cheesy Potato Casserole Recipe delivers comfort food vibes with minimal effort and big flavor. You get a creamy, tangy sauce that hugs every potato, plus a cheesy pull and a buttery crunch on top.
This version uses easy pantry shortcuts without sacrificing texture. It works for brunch, dinner, or a holiday spread, and it travels well for potlucks.
Ingredients You Need
- Frozen shredded hash browns, 32 ounces, thawed and patted dry
- Shortcut: Ore-Ida shreds thaw quickly and bake evenly.
- Swap: Use 3 pounds russet potatoes, peeled, shredded, rinsed, and squeezed very dry.
- Unsalted butter, 6 tablespoons, divided
- Yellow onion, 1 large, finely chopped
- Garlic, 2 to 3 cloves, minced
- Sour cream, 1 1/2 cups
- Swap: Use plain Greek yogurt for a lighter tang.
- Condensed cream of chicken soup, 1 can (10.5 ounces)
- Vegetarian swap: Cream of mushroom soup.
- From-scratch option: Use 1 1/4 cups thick béchamel.
- Whole milk, 1/2 cup
- Sharp cheddar cheese, 3 cups freshly shredded, divided
- Brand note: Tillamook sharp cheddar melts creamy and tastes bold.
- Shortcut: Pre-shredded saves time but melts a bit less smoothly.
- Kosher salt, 1 1/2 teaspoons, plus more to taste
- Black pepper, 1 teaspoon
- Sweet paprika, 1 teaspoon
- Scallions or chives, 1/2 cup, thinly sliced
- Topping
- Cornflakes, 2 cups, lightly crushed, mixed with 2 tablespoons melted butter
- Swap: Use panko or crushed buttery crackers.
- Optional add-ins
- Cooked bacon or diced ham, 1 to 1 1/2 cups
- Blanched broccoli florets, 1 1/2 cups
- Diced jalapeño, 1 to 2 peppers, seeded for mild heat
Equipment
- 9×13 inch baking dish, lightly greased
- Large skillet or Dutch oven
- Mixing bowl and spatula
- Box grater
- Foil
How to Make Cheesy Potato Casserole Recipe
Step 1: Preheat and prep potatoes
Heat the oven to 350 degrees F and grease a 9×13 inch dish. Thaw frozen hash browns and pat them very dry. If using fresh potatoes, shred, rinse until the water runs mostly clear, then squeeze out excess moisture with a clean towel.
Step 2: Sauté aromatics
Melt 4 tablespoons butter in a large skillet over medium heat. Add onion and cook until soft and lightly golden, 6 to 8 minutes, stirring often. Add garlic and cook 1 minute until fragrant, then season with a pinch of salt and pepper.
Step 3: Make the cheesy sauce
Lower the heat to medium-low. Stir in condensed soup, sour cream, milk, paprika, 1 1/2 teaspoons salt, and 1 teaspoon pepper until smooth and steaming, 2 to 3 minutes. Fold in 2 cups cheddar until it melts and the sauce turns glossy.
Step 4: Combine with potatoes
Add the potatoes to a large bowl and pour the sauce over them. Add half the scallions and any optional add-ins, then toss until every shred looks coated. Taste and adjust seasoning.
Step 5: Assemble the casserole
Spread the mixture into the prepared baking dish and smooth the top. Sprinkle the remaining 1 cup cheddar over the surface. Toss crushed cornflakes with the remaining 2 tablespoons melted butter and scatter over the cheese.
Step 6: Bake
Cover the dish with foil and bake 20 minutes. Remove the foil and bake 20 to 25 minutes more, until the edges bubble and the top turns deep golden. The center should hit at least 165 degrees F.
Step 7: Rest and finish
Let the casserole rest 10 minutes so the sauce thickens and slices hold. Sprinkle with remaining scallions or chives. Slice and serve hot.
Tips & Common Mistakes
- Dry the potatoes well, or the casserole can turn watery and dull in flavor.
- Shred cheese from a block for the best melt; anti-caking agents in bags can make the sauce grainy.
- Season the sauce before mixing with potatoes; the potatoes need assertive seasoning.
- Keep the oven rack in the center so the top browns without scorching.
- Cover for the first part of baking to keep the interior creamy, then uncover to crisp the topping.
- Use a light hand with add-ins; too many can crowd the pan and block even heating.
- Want gluten-free? Use GF condensed soup or homemade béchamel and a GF topping like crushed cornflakes labeled GF.
- Give it a 10-minute rest after baking; that short pause sets the sauce and makes cleaner squares.
- If the top browns too fast, tent loosely with foil near the end.
Variations I’ve Tried
- Jalapeño popper: Add diced jalapeños, swap half the cheddar for pepper jack, and dot in softened cream cheese.
- Bacon ranch: Fold in crisp bacon and 2 tablespoons dry ranch seasoning; finish with sliced green onions.
- Broccoli cheddar: Stir in blanched broccoli florets and a pinch of dry mustard.
- French onion: Cook onions longer until deeply caramelized, add a splash of Worcestershire, and use Gruyère with cheddar.
- Chicken and green chile: Fold in 2 cups shredded rotisserie chicken and a can of mild diced green chiles.
- Mushroom and thyme: Sauté sliced mushrooms with the onions, add fresh thyme, and use cream of mushroom soup.
How to Serve
Scoop generous squares and serve with roast chicken, grilled steak, or BBQ ribs. Add a bright side salad with a zippy vinaigrette to cut the richness. For brunch, top a slice with a fried egg and a few dashes of hot sauce. Cold leftovers make a solid midnight snack, not that I would know or anything.
Make-Ahead and Storage
Assemble the casserole, cover, and refrigerate up to 24 hours; add 5 to 10 extra minutes to the covered bake time. Freeze unbaked, tightly wrapped, up to 2 months; thaw overnight in the fridge or bake from frozen, covered, for 50 to 60 minutes, then uncover to crisp. Store leftovers in the fridge up to 4 days in a sealed container. Reheat covered in a 350 degree F oven until hot, then uncover for a few minutes to refresh the topping, or microwave single portions with a splash of milk for moisture.
Tasty Cheesy Potato Casserole Recipe
Ingredients
Instructions
- Preheat the oven to 375°F (190°C). Grease a 9x13-inch baking dish.
- Place the cubed potatoes in a large pot, cover with cold water, and bring to a boil. Simmer 8–10 minutes, just until barely tender. Drain well and set aside.
- In a large saucepan, melt 3 tablespoons butter over medium heat. Add the chopped onion and cook 4–5 minutes until softened. Stir in the minced garlic and cook 30 seconds more.
- Sprinkle the flour over the onion mixture and cook, stirring constantly, for 1 minute to form a roux.
- Gradually whisk in the milk, stirring to remove any lumps. Cook 3–5 minutes, stirring often, until the sauce thickens and gently bubbles.
- Remove the saucepan from the heat. Stir in the sour cream, 1 1/2 cups of the shredded cheddar cheese, salt, pepper, and paprika until smooth and the cheese has melted.
- Combine the drained potatoes with the cheese sauce in a large bowl, folding gently to coat without breaking up the potatoes too much.
- Transfer the potato mixture to the prepared baking dish and spread into an even layer. Sprinkle the remaining 1/2 cup cheddar cheese over the top.
- If using a crunchy topping, mix the crushed cornflakes or breadcrumbs with the melted butter and sprinkle evenly over the casserole.
- Bake for 30–35 minutes, or until the casserole is bubbly around the edges and the top is golden brown.
- Let the casserole rest for 5–10 minutes before serving. Garnish with chopped fresh parsley if desired, then serve warm.
Notes
Approximate per serving (8 servings): 360 calories; fat 21 g; saturated fat 12 g; carbohydrates 33 g; fiber 3 g; sugars 5 g; protein 11 g; sodium 520 mg. Values will vary based on specific ingredients, brands, and portion size.