Introduction to Crockpot Philly Cheesesteak Casserole

Crockpot Philly cheesesteak casserole brings the familiar combination of beef, peppers, onions, and cheese to the slow cooker. Browning the ground beef first gives the dish a better texture and keeps excess fat out of the casserole. The vegetables soften as they cook, while Worcestershire sauce and simple seasonings give the filling a savory, steakhouse-style flavor.

This recipe uses cooked pasta added near the end so it stays tender instead of becoming overly soft. Provolone and cream cheese make the casserole creamy and rich, with enough cheese to hold the filling together without hiding the peppers and onions. Plan on about 20 minutes of prep, followed by several hours in the crockpot.

Why You'll Love This Crockpot Philly Cheesesteak Casserole

• The slow cooker does most of the work after the beef and vegetables are prepared.
• Ground beef makes this casserole more affordable and easier to portion than sliced steak.
• The pasta is stirred in near the end, so it keeps a pleasant, tender texture.
• Mild peppers, onions, and cheese make this a family-friendly dinner.
• The leftovers reheat well for lunch or another quick meal.

Ingredients for Crockpot Philly Cheesesteak Casserole

• 1½ lbs lean ground beef
• – 1 tablespoon olive oil
• – 1 large yellow onion, thinly sliced
• – 2 medium green bell peppers, sliced into thin strips
• – 1 medium red bell pepper, sliced (optional)
• – 3 cloves garlic, minced
• – 1 tablespoon Worcestershire sauce
• – 1 teaspoon garlic powder
• – 1 teaspoon onion powder

Choose lean ground beef so the casserole does not turn greasy, and drain it well after browning. Slice the onion and peppers into strips of similar size so they soften evenly. The optional red bell pepper adds color and mild sweetness, but the two green peppers provide the main pepper flavor.

How to Make Crockpot Philly Cheesesteak Casserole

Step 1: Brown the Beef

Heat a large skillet over medium-high heat and add the olive oil. Crumble in the ground beef and cook for 6 to 8 minutes, stirring often, until no pink remains. Check that the beef reaches 160°F in the thickest part, then drain any excess grease. Transfer the cooked beef to a 6-quart slow cooker.

Step 2: Soften the Vegetables

Add the sliced yellow onion, green bell peppers, optional red bell pepper, and minced garlic to the same skillet. Cook for 3 to 4 minutes, stirring often, just until the vegetables begin to soften. They do not need to be fully tender because they will continue cooking in the crockpot. Transfer them to the slow cooker with the beef.

Step 3: Season the Filling

Add the Worcestershire sauce, garlic powder, onion powder, 1 cup of low-sodium beef broth, ½ teaspoon of kosher salt, and ¼ teaspoon of black pepper to the crockpot. Stir thoroughly so the seasonings and broth coat the beef and vegetables. Cover and cook on LOW for 3½ to 4 hours, or until the onions and peppers are tender and the mixture is hot throughout.

Step 4: Cook the Pasta Separately

About 20 minutes before the slow-cooker mixture is ready, cook 12 ounces of short pasta such as rotini, penne, or small shells in a large pot of salted water. Follow the package directions, but drain the pasta when it is just tender. Do not leave it in the hot water, because it will continue cooking when added to the casserole.

Step 5: Combine the Casserole

Stir the drained pasta into the crockpot mixture. Add 4 ounces of softened cream cheese and stir until it is mostly melted into the broth and beef. Fold in 1 cup of shredded provolone. Cover and cook on LOW for 15 to 20 minutes, stirring once, until the pasta is hot and the cream cheese is incorporated.

Step 6: Add the Final Cheese Layer

Sprinkle the remaining 1 cup of shredded provolone over the top. Cover and cook for 10 to 15 minutes more, until the cheese is melted and the center of the casserole reaches at least 165°F. Turn off the slow cooker and let the casserole rest for 5 minutes before serving. Refrigerate leftovers within 2 hours.

Tips for Success

• Brown the ground beef in batches if your skillet is crowded, since overcrowding can make it steam instead of brown.
• Use freshly shredded provolone when possible because it melts more smoothly than many pre-shredded cheeses.
• If the casserole looks dry after the pasta is added, stir in ¼ cup of warm beef broth before adding the final cheese.
• Keep the slow cooker covered during the final cheese-melting stage so the heat stays steady.
• Store leftovers in a covered container in the refrigerator for up to 3 days, and reheat them to 165°F before serving.

Equipment Needed

• 6-quart slow cooker
• Large skillet
• Large pot for cooking pasta

Variations

• Replace half of the provolone with shredded mozzarella for a milder, stretchy cheese topping.
• Add 8 ounces of sliced mushrooms with the peppers if you enjoy a more substantial vegetable filling.
• Use whole-wheat rotini or penne for a heartier texture, adjusting the pasta cooking time according to the package.
• For a sharper flavor, replace ½ cup of the provolone with shredded white cheddar.
• Use ground turkey in place of the beef, but cook it to 165°F and expect a slightly lighter flavor.

Serving Suggestions

Serve the casserole in shallow bowls while the cheese is still warm and soft. A simple green salad, steamed broccoli, or roasted vegetables make easy sides. For extra crunch, add sliced green onions or a little chopped parsley just before serving. Since the filling is rich and savory, a crisp vegetable side balances the plate without adding much work.

FAQs about Crockpot Philly Cheesesteak Casserole

Can I put raw ground beef directly in the crockpot? It is better to brown the ground beef first for this recipe. Browning improves the texture, allows you to drain excess fat, and makes it easier to confirm that the beef has reached 160°F before slow cooking.

Can I add uncooked pasta to the slow cooker? This recipe does not recommend adding uncooked pasta at the beginning. Pasta can become soft or unevenly cooked during several hours in the crockpot, so cook it separately and stir it in during the final 20 minutes.

Can I make this casserole without the red bell pepper? Yes. The red bell pepper is optional, so you can leave it out without changing the cooking time. The two green bell peppers and onion will still provide plenty of vegetable flavor and texture.

How long does Crockpot Philly Cheesesteak Casserole last? Keep leftovers refrigerated in a covered container for up to 3 days. Reheat individual portions in the microwave or reheat the casserole gently in a covered oven-safe dish until the center reaches 165°F.

Can I prepare this casserole ahead of time? You can brown the beef and prepare the vegetables up to 1 day ahead, then refrigerate them separately. Cook the pasta and assemble the casserole on the day you plan to serve it for the best texture.

Final Thoughts

Crockpot Philly cheesesteak casserole is a practical way to turn familiar sandwich flavors into a filling dinner. The beef, peppers, onions, and cheese cook into a hearty sauce, while adding the pasta at the end keeps every bite pleasantly tender. It is a useful recipe for busy evenings when you want a warm meal without standing over the stove.

Crockpot Philly Cheesesteak Casserole

A slow-cooked casserole of seasoned beef, peppers, onions, pasta, cream cheese, and melted provolone.

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Prep Time 20 minutes mins

Cook Time 4 hours hrs 30 minutes mins

Total Time 4 hours hrs 50 minutes mins

Servings: 8 servings

Calories: 510

Ingredients Equipment Method Notes

Ingredients

  

• 1½ lbs lean ground beef
• 1 tablespoon olive oil
• 1 large yellow onion thinly sliced
• 2 medium green bell peppers sliced into thin strips
• 1 medium red bell pepper sliced; optional
• 3 cloves garlic minced
• 1 tablespoon Worcestershire sauce
• 1 teaspoon garlic powder
• 1 teaspoon onion powder
• 1 cup low-sodium beef broth
• ½ teaspoon kosher salt
• ¼ teaspoon black pepper
• 12 ounces short pasta such as rotini, penne, or small shells
• 4 ounces cream cheese softened
• 2 cups shredded provolone divided

Equipment

• 6-quart slow cooker
• large skillet

Method

 

1. Brown the ground beef in olive oil until it reaches 160°F, drain it, and transfer it to the slow cooker.
2. Cook the onion, green peppers, optional red pepper, and garlic briefly in the skillet, then add them to the slow cooker.
3. Stir in the Worcestershire sauce, seasonings, broth, salt, and pepper, then cook covered on LOW for 3½ to 4 hours.
4. Cook the pasta separately until just tender and drain it.
5. Stir the pasta, cream cheese, and 1 cup of provolone into the slow cooker and cook covered for 15 to 20 minutes.
6. Top with the remaining provolone, cover until melted, rest for 5 minutes, and serve when the center reaches 165°F.

Notes

• Brown and drain the ground beef before adding it to the slow cooker.
• Add cooked pasta near the end so it does not become mushy.
• Refrigerate leftovers within 2 hours and use them within 3 days.