If you’re looking for a hearty, comforting dinner that practically cooks itself, let me introduce you to the Slow Cooker Steak and Cheddar Potato Casserole. Tender sirloin steak and creamy potatoes are bathed in a rich, cheesy sauce with just the right hint of smokiness and tang. Everything comes together in your slow cooker, making it the ultimate set-it-and-forget-it meal for busy days or cozy weekends. Trust me, this is one of those recipes you’ll want to make again and again for family dinners, potlucks, or anytime you crave classic comfort food with a little gourmet flair.

Slow Cooker Steak and Cheddar Potato Casserole Recipe - Recipe Image

Ingredients You’ll Need

All you need are a handful of simple, real ingredients to build layers of flavor and texture in this dish. Each one plays a key role in creating the irresistible taste and mouthfeel of Slow Cooker Steak and Cheddar Potato Casserole, so don’t skip a thing!

Sirloin steak: Choose a tender cut and dice it into bite-sized pieces for rich, meaty bites in every forkful.
Russet potatoes: Their starchy texture turns ultra-creamy and soaks up all the delicious flavors as they cook.
Yellow onion: Adds a subtle sweetness and depth to the casserole as it melts into the sauce.
Garlic: Just two cloves bring a gentle, aromatic kick that ties everything together.
Beef broth: Acts as the savory backbone, keeping everything juicy and flavorful as it simmers away.
Worcestershire sauce: A splash of this umami-packed sauce adds a tangy, irresistible depth.
Smoked paprika: Just a teaspoon brings a smoky warmth that complements both the beef and the cheese.
Salt and black pepper: Essential for seasoning every layer just right—don’t be shy!
Sharp cheddar cheese: The star cheese, providing bold flavor and melt-in-your-mouth creaminess.
Sour cream: Stirred in at the end, it gives the casserole a rich, tangy finish.
Fresh parsley: Chopped and sprinkled over the top, it brightens up the dish both in color and flavor.
Olive oil: Used for searing the steak, lending a lovely golden crust and added richness.

How to Make Slow Cooker Steak and Cheddar Potato Casserole

Step 1: Sear the Steak

Start by heating a skillet over medium-high heat and adding a drizzle of olive oil. Once hot, toss in the steak pieces and sear them for about 2–3 minutes until they’re beautifully browned on all sides. This step isn’t about cooking them through—it’s all about building that deep, savory flavor. Once seared, transfer the steak directly into your slow cooker.

Step 2: Load Up the Slow Cooker

Now for the easiest part: simply add the diced potatoes, chopped onion, minced garlic, beef broth, Worcestershire sauce, smoked paprika, salt, and pepper to the slow cooker. Give everything a good stir to mix the flavors and evenly distribute the seasoning. This is where the magic starts to happen!

Step 3: Slow Cook to Perfection

Pop the lid on your slow cooker and set it to low for 6–7 hours, or high for 3–4 hours if you’re short on time. The potatoes should be fork-tender, and the steak juicy and flavorful. Your kitchen will smell absolutely incredible as the Slow Cooker Steak and Cheddar Potato Casserole simmers away.

Step 4: Make It Creamy and Cheesy

When the cooking time is up, stir in the sour cream and 1 cup of the shredded cheddar cheese. This transforms the casserole into something ultra-creamy and decadent. Once everything’s melted and blended, sprinkle the remaining 1/2 cup of cheddar right over the top. Cover and let it sit for another 5–10 minutes so the cheese gets perfectly gooey.

Step 5: Garnish and Serve

Right before serving, shower the casserole with freshly chopped parsley for a pop of color and freshness. Now your Slow Cooker Steak and Cheddar Potato Casserole is ready to steal the show at any table—dig in while it’s warm and melty!

How to Serve Slow Cooker Steak and Cheddar Potato Casserole

Garnishes

Garnishing takes this dish from comfort classic to something extra special. Fresh parsley is a must for a little herby brightness, but you can also add a sprinkle of extra cheddar, cooked crumbled bacon, or a handful of sliced green onions for even more flavor and a little crunch. Each garnish adds its own personality to the Slow Cooker Steak and Cheddar Potato Casserole.

Side Dishes

This casserole is hearty enough to stand alone, but it shines even brighter paired with something light and fresh. I love serving it with a crisp green salad or some steamed broccoli to balance out the richness. Garlic bread or warm dinner rolls are perfect for soaking up all that cheesy, savory sauce.

Creative Ways to Present

For a fun twist, try spooning the Slow Cooker Steak and Cheddar Potato Casserole into individual ramekins for personalized servings. Or, serve it family-style in a rustic baking dish right at the center of the table for a cozy, communal feel. Leftovers also make a delicious filling for stuffed bell peppers or as a savory topping for baked potatoes!

Make Ahead and Storage

Storing Leftovers

If you’re lucky enough to have any leftovers, store them in an airtight container in the refrigerator. The flavors deepen overnight, making tomorrow’s lunch or dinner even more delicious. Just be sure to cool the casserole completely before sealing and storing.

Freezing

You can absolutely freeze Slow Cooker Steak and Cheddar Potato Casserole for future meals. Portion it into freezer-safe containers, leaving a little space for expansion. It will keep well for up to three months. Thaw overnight in the fridge before reheating for the best texture.

Reheating

To reheat, simply microwave individual portions until hot, or warm larger amounts gently on the stovetop over low heat. Add a splash of broth or a little extra sour cream if needed to keep things creamy and moist. Top with fresh parsley and an extra sprinkle of cheese if you’re feeling fancy.

FAQs

Can I use a different cut of beef?

Absolutely! While sirloin is tender and flavorful, you can use stew meat, chuck roast, or even ribeye if you prefer. Just keep the pieces bite-sized for even cooking.

Is it possible to make this casserole vegetarian?

Yes! Swap the steak for sautéed mushrooms or a plant-based meat alternative, use vegetable broth instead of beef, and you’ll still get all the creamy, cheesy goodness of the Slow Cooker Steak and Cheddar Potato Casserole.

Can I prepare this recipe the night before?

You sure can. Brown the steak and prep all the veggies, then layer everything (except the cheese and sour cream) in your slow cooker insert. Refrigerate overnight. In the morning, set the insert into the slow cooker and start cooking as directed.

What cheese works best besides sharp cheddar?

Sharp cheddar is classic, but feel free to experiment! Monterey Jack, Colby, or a smoked gouda will each give the casserole a unique twist. Just be sure to use a cheese that melts well.

How do I make this casserole gluten-free?

This recipe is naturally gluten-free as written, but always double-check your broth and Worcestershire sauce to ensure there are no hidden gluten ingredients.

Final Thoughts

I can’t wait for you to try this Slow Cooker Steak and Cheddar Potato Casserole—it’s pure comfort in a bowl and so simple to make. Whether you’re feeding a hungry crowd or just want an effortless, cozy dinner, this recipe will quickly become a favorite at your table. Happy slow cooking!

Slow Cooker Steak and Cheddar Potato Casserole Recipe

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4.7 from 22 reviews

Author: admin
Total Time: 6 hours 15 minutes
Yield: 6 servings 1x
Diet: Non-Vegetarian

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Description

This Slow Cooker Steak and Cheddar Potato Casserole is a hearty and comforting dish featuring tender sirloin steak, tender russet potatoes, and sharp cheddar cheese. Perfect for a cozy family dinner, this casserole combines savory flavors with creamy textures, slow-cooked to perfection for an effortless meal.

Ingredients

Scale

Meat and Dairy

1 1/2 pounds sirloin steak, cut into bite-sized pieces
1 1/2 cups shredded sharp cheddar cheese
1/2 cup sour cream
Olive oil for searing

Vegetables

2 pounds russet potatoes, peeled and diced
1 medium yellow onion, chopped
2 cloves garlic, minced

Liquids and Seasonings

1 cup beef broth
1 tablespoon Worcestershire sauce
1 teaspoon smoked paprika
1/2 teaspoon salt
1/2 teaspoon black pepper
2 tablespoons chopped fresh parsley

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Instructions

Sear the Steak: Heat a skillet over medium-high heat and add a drizzle of olive oil. Sear the steak pieces until browned on all sides, about 2–3 minutes, ensuring they are browned but not fully cooked. Transfer the steak to the slow cooker.
Add Vegetables and Seasonings: Add the diced potatoes, chopped onion, minced garlic, beef broth, Worcestershire sauce, smoked paprika, salt, and black pepper to the slow cooker with the seared steak. Stir gently to combine all ingredients evenly.
Cook: Cover the slow cooker and cook on low for 6–7 hours or on high for 3–4 hours until the potatoes are tender and the steak is fully cooked.
Add Cheese and Sour Cream: Once cooking is complete, stir in the sour cream and 1 cup of shredded cheddar cheese until the mixture becomes creamy and the cheese melts thoroughly.
Top with Cheese and Melt: Sprinkle the remaining 1/2 cup of cheese on top of the casserole. Cover the slow cooker again and let the cheese melt for 5–10 minutes.
Garnish and Serve: Garnish the casserole with chopped fresh parsley. Serve warm and enjoy your comforting slow cooker steak and cheddar potato casserole.

Notes

For extra flavor, add cooked crumbled bacon or a handful of chopped green onions at the end.
You can substitute Greek yogurt for sour cream if you prefer a tangier and lighter option.

Prep Time: 15 minutes
Cook Time: 6 hours
Category: Main Course
Method: Slow Cooker
Cuisine: American