Side Dishescarlsbadcravings5.0
Mashed Potato Casserole Recipe
This MAKE AHEAD FRIENDLY Mashed Potato Casserole is 10/10 creamy, cheesy, and flavor-packed! I’ve perfected the recipe with a buttery, crunchy panko topping, savory spices, and melty cheeses to make it irresistibly crowd-pleasing every time. See the post for expert tips, make-ahead instructions, step-by-step photos, and recipe variations!
👥 12 Servings⏱️ Prep & Cook: 1h 25m⏳ Prep: 30 min🔥 Cook: 55 min👤 Jen📖 carlsbadcravings
🥘 Ingredients
Check off ingredients as you prepare them:
🍳 Cookware
- baking dish
- oven
- pot
- dutch oven
- skillet
- colander
- spatula
📝 Preparation Steps
1
Prep: Preheat the oven to 375°F. Lightly grease a 9x13 baking dish with butter or cooking spray.
2
Boil Potatoes: Place the cubed potatoes in a large Dutch oven and fill with water so it reaches about 2 inches above the potatoes. Cover and bring to a boil, then season with 1 1/2 tablespoons of kosher salt. Reduce to a simmer with the lid partially covering the pot until the potatoes are very soft, about ⏱️ 15 minutes (if you pierce them with a fork, they should fall apart).
3
Toast Panko: While the potatoes are boiling, melt 2 tablespoons of butter with one tablespoon of olive oil in a large skillet. Add the panko and toast over medium heat until golden. Transfer to a plate to stop cooking.
olive oil1 tablespoon
4
Drain: Drain the potatoes very well in a colander, then return them to the pot to steam-dry for ⏱️ 3 minutes.
5
Mash: Add the sour cream, cream cheese, butter, and spices, and mash using a potato masher (not a mixer) until smooth. Gradually stir in the warmed milk with a spatula until smooth. IF MAKING AHEAD, stir in an extra 1/4 cup of warmed milk.
6
Add Cheeses: Stir in the cheeses. Don’t overmix, or they can be gluey. The potatoes will be slightly softer/looser than desired because they will firm up when baked or chilled.
7
Assemble: Spread the potatoes into the prepared baking dish, then top with cheeses and panko.
8
Bake: Cover with foil and bake for ⏱️ 25 minutes. Uncover and bake an additional ⏱️ 10 minutes, until the cheese is completely melted.
9
Serve: Top with green onions and bacon. Dig in!
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