Description
Loaded Mashed Potato Casserole
Ingredients
3 lbs potatoes, peeled and cubed
4 tbsp butter
1/2 cup sour cream
1/2 cup milk
1 1/2 cups shredded cheddar cheese (divided)
6 slices crispy cooked bacon, crumbled
2 green onions, chopped
Salt and pepper to taste
Directions
Preheat oven to 375°F (190°C). Grease a 9×13-inch casserole dish.
Boil the potatoes in salted water until tender, about 15-20 minutes. Drain and mash until smooth.
Mix in butter, sour cream, milk, and 1 cup of shredded cheese. Season with salt and pepper to taste.
Transfer the mashed potatoes to the casserole dish. Top with remaining cheese and crumbled bacon.
Bake for 20 minutes, or until cheese is melted and bubbly.
Sprinkle with chopped green onions before serving.
Prep Time: 15 minutes
Cook Time: 40 minutes
Total Time: 55 minutes
Servings: 6
Calories: ~350 kcal per serving
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Step-by-Step Guide
Follow these detailed instructions for perfect results every time. Start by preheating your oven to 375°F (190°C) and greasing your 9×13-inch baking dish. For the potatoes, cut them into uniform, 1-inch cubes to ensure even cooking. Boil them in well-salted water until they are fork-tender, which typically takes 15-20 minutes. Thoroughly drain the potatoes and return them to the hot pot for a minute to evaporate excess moisture—this prevents watery mashed potatoes. Use a potato ricer or masher to achieve a smooth, lump-free base. While the potatoes are still hot, vigorously stir in the butter, sour cream, and milk until fully incorporated and creamy. Then, fold in 1 cup of the cheddar cheese. Season generously with salt and pepper, tasting as you go.
Spread the cheesy potato mixture evenly into your prepared dish. For the topping, evenly sprinkle the remaining 1/2 cup of cheese, followed by the crumbled bacon. Bake on the middle rack for 20 minutes, or until the cheese is fully melted and the edges are lightly bubbly. The final touch is a fresh sprinkle of chopped green onions just before serving.
Serving Suggestions
This rich casserole is the ultimate comfort food side dish. It pairs perfectly with roasted or grilled proteins like herb-crusted chicken, juicy steak, or simple baked meatloaf. For a lighter contrast, serve it alongside a crisp green salad with a tangy vinaigrette or steamed green beans. It also makes a fantastic standalone meal for a cozy night in, especially when garnished with extra sour cream or a dollop of ranch dressing.
How-to Summary
In short: Cube and boil potatoes until tender, then mash. Mix in butter, dairy, and 1 cup of cheese. Spread in a dish, top with remaining cheese and bacon, and bake at 375°F for 20 minutes. Garnish with green onions.
Frequently Asked Questions
Can I make this casserole ahead of time? Yes. Assemble the casserole completely, cover tightly, and refrigerate for up to 24 hours. Add 5-10 minutes to the baking time when cooking from cold.
What are the best potatoes to use? Russet or Yukon Gold potatoes are ideal. Russets create a fluffy texture, while Yukon Golds yield a naturally creamier, richer mash.
How can I store and reheat leftovers? Store cooled leftovers in an airtight container in the fridge for 3-4 days. Reheat individual portions in the microwave or the entire dish, covered with foil, in a 350°F oven until warmed through.
Can I freeze this potato casserole? It’s not recommended. The dairy and potato texture can become grainy and separate after freezing and thawing.
What are some easy ingredient substitutions? Use Greek yogurt instead of sour cream, a different shredded cheese like pepper jack, or turkey bacon. For a vegetarian version, omit the bacon and add sautéed mushrooms or diced jalapeños.
Common Mistakes to Avoid
- Overworking the Potatoes: Over-mashing can release too much starch, making the texture gluey. Mash just until smooth.
- Using Cold Dairy: Let your sour cream and milk sit at room temperature for 15 minutes before mixing in to prevent the mashed potatoes from cooling down and becoming stiff.
- Underseasoning: Potatoes need ample seasoning. Taste the mixture before baking and adjust salt and pepper as needed.
- Skipping the Grease: Always grease your casserole dish to ensure easy serving and cleanup.
Conclusion
This Loaded Mashed Potato Casserole is a guaranteed crowd-pleaser that transforms simple ingredients into the ultimate comfort food. With its creamy, cheesy base and irresistible bacon topping, it’s perfect for weeknight dinners, holiday feasts, or any potluck. By following the detailed guide and tips provided, you can avoid common pitfalls and create a flawless dish every time. Give this recipe a try—it’s the decadent, easy-to-make side dish that everyone will request again and again.