If you love the classic flavors of a Philly cheesesteak but want something more comforting and hearty, this Philly cheesesteak potato casserole is exactly what you need. With tender thinly sliced beef, sautéed onions and peppers, melty provolone, and creamy potatoes, this dish brings all your favorite tastes together in one satisfying meal.
Using a slow cooker tip in this recipe makes it even easier to prepare. You can set it and forget it, then come home to a delicious, bubbling casserole perfect for weeknights or casual gatherings. Let’s dive into why this philly cheesesteak casserole stands out and how to make it your new favorite dinner.
Why You'll Love This Recipe
- Combines classic Philly cheesesteak flavors with comforting potatoes for a unique twist.
- Slow cooker tip allows for hands-off cooking and perfectly tender beef.
- Easy to prep ahead and great for feeding a crowd or family.
- Rich, cheesy, and packed with savory ingredients in every bite.
- Versatile enough to customize with your favorite veggies or cheese.
Ingredients
Gather these simple ingredients to create your Philly cheesesteak potato casserole. The combination of beef, cheese, and potatoes delivers a hearty meal.
- 1 lb thinly sliced ribeye steak or sirloin
- 4 cups peeled and diced potatoes (Yukon Gold or Russet)
- 1 large onion, thinly sliced
- 1 cup green bell pepper, thinly sliced
- 8 oz provolone cheese, sliced
- 1 cup shredded mozzarella cheese
- 3 cloves garlic, minced
- 2 tbsp olive oil
- 1 cup beef broth
- 1 tsp Worcestershire sauce
- 1 tsp salt
- ½ tsp black pepper
- ½ tsp smoked paprika
- 2 tbsp butter
- 2 tbsp all-purpose flour
- 1 cup whole milk
YOUR NEXT FAVORITE RECIPE STARTS HERE
Recipe Details
- Prep Time: 20 minutes
- Cook Time: 4 hours (slow cooker) or 45 minutes (oven)
- Total Time: 4 hours 20 minutes (slow cooker) or 1 hour 5 minutes (oven)
- Servings: 6
- Calories: Approximately 520 per serving
How to Make Philly Cheesesteak Potato Casserole - Slow Cooker Tip
- Start by heating 1 tablespoon olive oil in a skillet over medium-high heat. Add the sliced onions and green peppers, sauté until softened and slightly caramelized, about 7 minutes. Set aside.
- In the same skillet, add the remaining olive oil and quickly sear the thinly sliced steak for 2-3 minutes until just browned but not cooked through. Season with salt, pepper, smoked paprika, and garlic. Transfer to the slow cooker.
- Add the sautéed onions and peppers, diced potatoes, beef broth, and Worcestershire sauce into the slow cooker. Stir gently to combine all ingredients evenly.
- Cover and cook on low for 4 hours, or until potatoes are tender and steak is very tender. The slow cooker will meld all flavors beautifully.
- While the casserole cooks, prepare a simple cheese sauce by melting butter in a saucepan over medium heat. Whisk in flour and cook for 1-2 minutes. Slowly whisk in milk and simmer until thickened, then stir in shredded mozzarella cheese until melted and smooth.
- Once the slow cooker time is complete, stir the cheese sauce into the casserole. Transfer everything to a baking dish if your slow cooker insert is not oven-safe.
- Layer provolone slices evenly over the top and place under a preheated broiler for 3-5 minutes, watching carefully until the cheese is bubbly and golden.
- Remove from oven, let rest for 5 minutes, garnish with fresh parsley if desired, and serve hot for a cozy meal that's packed with philly cheesesteak casserole flavor.
Tips for the Best Results
- Use thinly sliced beef for quick cooking and tender texture.
- Don’t skip the slow cooker step to let flavors fully develop and potatoes cook perfectly.
- For extra cheesiness, add a sprinkle of cheddar or American cheese on top before broiling.
- Make sure to cut potatoes into uniform pieces for even cooking.
- If you prefer a thicker casserole, reduce the beef broth slightly or add extra cheese sauce.
Storage and Reheating
Store leftover Philly cheesesteak casserole in an airtight container in the refrigerator for up to 3 days. To reheat, warm in the oven at 350°F for 15-20 minutes or microwave individual portions until heated through.
This casserole also freezes well. Freeze in portions in freezer-safe containers for up to 2 months. Thaw overnight in the refrigerator before reheating for best texture and flavor.
Frequently Asked Questions
Can I make this casserole without a slow cooker?
Yes! You can assemble the casserole in a baking dish and bake at 375°F for about 45 minutes until potatoes are tender and the cheese is bubbly. Just make sure to cover with foil for most of the baking time to keep moisture in.
What type of cheese works best in this dish?
Provolone is classic for Philly cheesesteak flavor, but you can also mix in mozzarella or cheddar for extra meltiness. Avoid overly strong cheeses that might overpower the beef.
Can I use frozen potatoes?
Fresh potatoes are preferred for best texture, but if using frozen diced potatoes, reduce cooking time slightly and check for doneness early to avoid mushiness.
Is it possible to make this recipe vegetarian?
You can substitute the beef with sliced mushrooms or plant-based meat alternatives and use vegetable broth instead of beef broth. The cheese sauce and veggies will still make it delicious.