Twice Baked Potato Dump Casserole is the ultimate comfort dish that brings warmth and joy to your table! Imagine creamy mashed potatoes mingling with rich cheddar cheese, tangy sour cream, and a sprinkle of chives, all baked to golden perfection. This delightful casserole is as easy as it is delicious—just dump, stir, and bake! Perfect for family gatherings or a cozy night in, it’s a dish that promises to wrap you in a blanket of flavor. Get ready to dig into a hearty, satisfying meal that will leave everyone asking for seconds!
Table of Contents
Table of Contents

Twice Baked Potato Dump Casserole
Equipment
- 1 9×13 inch casserole dish Greased with cooking spray or butter
- 1 Oven Preheated to 350°F (175°C)
Ingredients
Potatoes
- 4 large russet potatoes The star of the dish; use russet for a fluffy texture.
Filling
- 1 cup sour cream Provides creaminess and tang; Greek yogurt can be a healthier substitute.
- 1 cup shredded cheddar cheese Adds a rich, creamy flavor; opt for sharp for more bite.
- 1/2 cup milk Helps achieve a creamy consistency; use whole milk for richness or a non-dairy alternative.
- 1/4 cup green onions For a fresh, mild onion flavor; chop finely for even distribution.
- to taste salt Essential for flavor enhancement; adjust to taste.
- to taste black pepper Adds a hint of spice; freshly ground gives the best flavor.
- 1/2 teaspoon garlic powder For a subtle garlic flavor; fresh minced garlic can be used for a stronger taste.
- to taste butter Enhances richness; consider using unsalted for better control of seasoning.
Instructions
- Preheat your oven to 350°F (175°C). This will ensure your casserole cooks evenly and gets that lovely golden top!
- Wash and scrub 4 large russet potatoes. Poke a few holes in each potato with a fork to let steam escape while baking.
- Place the potatoes directly on the oven rack and bake for about 1 hour, or until they are tender when pierced with a fork.
- Once baked, remove the potatoes from the oven and let them cool for about 10-15 minutes. This will make them easier to handle!
- Carefully cut each potato in half lengthwise. Use a spoon to scoop out the fluffy insides into a large mixing bowl, leaving a little potato around the skin for structure.
- Add 1 cup of sour cream, 1 cup of shredded cheddar cheese, 1/2 cup of milk, 1/4 cup of green onions, and salt and pepper to taste into the bowl with the potato flesh. Mix until creamy and well combined!
- Grease a 9×13 inch casserole dish with cooking spray or butter to prevent sticking.
- Spread the creamy potato mixture evenly in the prepared casserole dish. Top with an additional 1 cup of shredded cheese and some extra green onions if you like!
- Place the casserole in the preheated oven and bake for about 25-30 minutes, or until the cheese is bubbly and golden brown.
- Remove from the oven, let it cool for a few minutes, then dig in! Enjoy your comforting Twice Baked Potato Dump Casserole with family and friends!
Notes
Calories | Fat | Protein | Carbs |
---|---|---|---|
350 | 20g | 10g | 35g |
Why You’ll Love This Twice Baked Potato Dump Casserole
- It’s a cozy, hearty dish that feels like a warm hug.
- Easy to prepare—just dump and bake, no fuss!
- Loaded with cheesy goodness and comforting flavors.
- Perfect for feeding a crowd or meal prepping for the week.
- Customizable with your favorite toppings and ingredients.
Recipe Snapshot
Feature | Details |
---|---|
Category: | Casserole |
Cuisine: | American |
Prep Time: | 15 minutes |
Cook Time: | 45 minutes |
Total Time: | 1 hour |
Dietary: | Vegetarian |
Serves: | 6-8 |
Best Served: | Warm |
Ingredients for Twice Baked Potato Dump Casserole
- Potatoes – The star of the dish; use russet for a fluffy texture.
- Cheddar cheese – Adds a rich, creamy flavor; opt for sharp for more bite.
- Sour cream – Provides creaminess and tang; Greek yogurt can be a healthier substitute.
- Green onions – For a fresh, mild onion flavor; chop finely for even distribution.
- Butter – Enhances richness; consider using unsalted for better control of seasoning.
- Salt – Essential for flavor enhancement; adjust to taste.
- Black pepper – Adds a hint of spice; freshly ground gives the best flavor.
- Garlic powder – For a subtle garlic flavor; fresh minced garlic can be used for a stronger taste.
- Milk – Helps achieve a creamy consistency; use whole milk for richness or a non-dairy alternative.

Ingredients with measurements will be right under the article in the recipe card.
How to Make the Twice Baked Potato Dump Casserole
Get ready to whip up a delicious Twice Baked Potato Dump Casserole with these easy steps!
Step 1: Preheat the Oven
Preheat your oven to 350°F (175°C). This will ensure your casserole cooks evenly and gets that lovely golden top!
Step 2: Prepare the Potatoes
Wash and scrub 4 large russet potatoes. Poke a few holes in each potato with a fork to let steam escape while baking.
Step 3: Bake the Potatoes
Place the potatoes directly on the oven rack and bake for about 1 hour, or until they are tender when pierced with a fork.
Step 4: Let Them Cool
Once baked, remove the potatoes from the oven and let them cool for about 10-15 minutes. This will make them easier to handle!
Step 5: Scoop Out the Flesh
Carefully cut each potato in half lengthwise. Use a spoon to scoop out the fluffy insides into a large mixing bowl, leaving a little potato around the skin for structure.
Step 6: Mix the Filling
Add 1 cup of sour cream, 1 cup of shredded cheddar cheese, 1/2 cup of milk, 1/4 cup of green onions, and salt and pepper to taste into the bowl with the potato flesh. Mix until creamy and well combined!
Step 7: Prepare the Casserole Dish
Grease a 9×13 inch casserole dish with cooking spray or butter to prevent sticking.
Step 8: Assemble the Casserole
Spread the creamy potato mixture evenly in the prepared casserole dish. Top with an additional 1 cup of shredded cheese and some extra green onions if you like!
Step 9: Bake the Casserole
Place the casserole in the preheated oven and bake for about 25-30 minutes, or until the cheese is bubbly and golden brown.
Step 10: Serve and Enjoy!
Remove from the oven, let it cool for a few minutes, then dig in! Enjoy your comforting Twice Baked Potato Dump Casserole with family and friends!

Pro Tips for Making the Twice Baked Potato Dump Casserole
• Use pre-cooked potatoes for a quicker prep time.
• Experiment with different cheeses for a unique flavor twist.
• Add cooked chicken or turkey for extra protein and heartiness.
• Don’t skip the seasoning; it elevates the dish’s overall taste.
• Let the casserole sit for a few minutes before serving for easier slicing.
How to Serve Twice Baked Potato Dump Casserole
- Serve with a dollop of sour cream or Greek yogurt.
- Pair with a fresh garden salad for a balanced meal.
- Offer a side of steamed broccoli or green beans for color.
- Sprinkle with chives or green onions for a fresh finish.
- Enjoy with a side of garlic bread for extra comfort.
- For a vegetarian twist, add sautéed mushrooms or spinach.
- Serve alongside grilled chicken or turkey for protein.
Make Ahead and Storage
Proper storage ensures your Twice Baked Potato Dump Casserole stays delicious for later enjoyment.
Storing Leftovers
– Allow the casserole to cool completely before storing.
– Transfer leftovers to an airtight container.
– Store in the refrigerator for up to 3-4 days.
– Label the container with the date for easy tracking.
Freezing
– Portion the casserole into freezer-safe containers.
– Leave some space at the top for expansion.
– Wrap tightly with plastic wrap and then foil.
– Freeze for up to 2-3 months for best quality.
Reheating
– Thaw in the refrigerator overnight before reheating.
– Reheat in the oven at 350°F (175°C) until heated through.
– For microwave reheating, use a microwave-safe dish and cover.
– Stir occasionally for even heating and to maintain texture.
FAQs
What ingredients do I need for Twice Baked Potato Dump Casserole?
You’ll need russet potatoes, sour cream, cream cheese, shredded cheese, green onions, and your choice of protein like chicken or beef. Feel free to customize with your favorite seasonings!
Can I make this casserole ahead of time?
Absolutely! You can prepare the casserole a day in advance. Just cover it tightly and store it in the refrigerator. When you’re ready to bake, let it sit at room temperature for a bit before popping it in the oven.
How do I store leftovers?
Leftovers can be stored in an airtight container in the fridge for up to 3-4 days. Reheat in the oven or microwave until warmed through for a delicious second helping!
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