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Got leftover mashed potatoes and don't know what to do with them? This Leftover Mashed Potato Casserole Recipe is a game-changer. It's creamy, cheesy, and oh-so-satisfying. Perfect for a quick weeknight dinner or a comforting side dish, this casserole will have everyone coming back for seconds. Plus, it's super easy to throw together with ingredients you probably already have in your kitchen. Let's dive in!
Leftover Mashed Potato Casserole Recipe
Ingredients:
- 4 cups leftover mashed potatoes
- 1 cup cheddar or your choice shredded cheese
- 1/2 cup sour cream
- 1/4 cup milk
- 2 tablespoons melted butter
- 1 teaspoon garlic powder
- 1/2 teaspoon salt
- 1/4 teaspoon black pepper
- 2 tablespoons optional, for garnish chopped chives
Instructions:
- Preheat your oven to 350°F (175°C).
- In a mixing bowl, combine the mashed potatoes, shredded cheese, sour cream, milk, melted butter, garlic powder, salt, and black pepper. Mix well.
- Transfer the mixture to a greased baking dish and spread it out evenly.
- Bake in the preheated oven for 30 minutes, or until the top is golden and bubbly.
- Garnish with chopped chives if desired and serve hot.
What You Will Need
Read more: Mashed Potato Casserole Recipe
What you will need to make leftover mashed potato casserole
Leftover mashed potatoes: Provides the creamy base, making this casserole a great way to use up leftovers and reduce food waste.
Cheddar cheese: Adds a rich, gooey texture and sharp flavor, making the dish more indulgent and satisfying.
Sour cream: Brings a tangy creaminess, balancing the richness of the cheese and potatoes.
Milk: Helps achieve a smoother consistency, ensuring the casserole isn't too thick or dry.
Melted butter: Adds richness and helps create a golden, crispy top layer.
Garlic powder: Infuses a subtle, savory depth, enhancing the overall flavor profile.
Chopped chives: Optional garnish that adds a fresh, mild onion flavor and a pop of color.
Tools and Instruments Required
- Mixing bowl: Essential for combining mashed potatoes, cheese, sour cream, milk, butter, and seasonings evenly.
- Baking dish: Holds the potato mixture while baking, ensuring even cooking and a golden top.
- Spatula: Helps mix ingredients thoroughly and spread the mixture evenly in the baking dish.
- Oven: Bakes the casserole to perfection, creating a bubbly, golden crust.
Leftover Mashed Potato Casserole
Equipment
- Oven
- Baking Dish
- Mixing bowl
Read more: Loaded Mashed Potato Casserole Recipe
Ingredients:
Main Ingredients
- 4 cups Leftover mashed potatoes
- 1 cup Shredded cheese cheddar or your choice
- 1/2 cup Sour cream
- 1/4 cup Milk
- 2 tablespoons Butter melted
- 1 teaspoon Garlic powder
- 1/2 teaspoon Salt
- 1/4 teaspoon Black pepper
- 2 tablespoons Chopped chives optional, for garnish
Instructions:
- Preheat your oven to 350°F (175°C).
- In a mixing bowl, combine the mashed potatoes, shredded cheese, sour cream, milk, melted butter, garlic powder, salt, and black pepper. Mix well.
- Transfer the mixture to a greased baking dish and spread it out evenly.
- Bake in the preheated oven for 30 minutes, or until the top is golden and bubbly.
- Garnish with chopped chives if desired and serve hot.
Notes:
Nutrition value:
Read more: Leftover Boiled Potato Casserole Recipe
Keywords:
Make Ahead and Freezing Instructions
Make Ahead Instructions
- Prepare the casserole mixture as directed.
- Cover the baking dish tightly with plastic wrap or aluminum foil.
- Store in the fridge for up to 2 days.
- When ready to bake, remove from the fridge and let it sit at room temperature for 30 minutes.
- Bake as directed.
Freezing Instructions
- Prepare the casserole mixture as directed.
- Transfer to a freezer-safe dish.
- Cover tightly with plastic wrap and then aluminum foil.
- Label with the date and freeze for up to 3 months.
- To bake, thaw in the fridge overnight.
- Remove from the fridge and let it sit at room temperature for 30 minutes.
- Bake as directed.
For an extra crispy top layer, sprinkle some breadcrumbs mixed with parmesan cheese over the casserole before baking.
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