A creamy High-Protein Philly Cheesesteak Casserole loaded with savory ground beef, tender bell peppers, onions, cream cheese, and melted provolone. This easy baked dinner delivers classic cheesesteak flavors while adding more protein to keep it satisfying and filling.
Recipe Card
High-Protein Philly Cheesesteak Casserole
Quick Description:
A protein-packed twist on the classic Philly cheesesteak featuring creamy beef, sautéed peppers, onions, and a golden melted cheese topping.
Servings: 8 servings
Prep Time: 10 minutes
Cook Time: 30 minutes
Total Time: 40 minutes
Dietary Information:
- High-protein
- Low-carb friendly
- Gluten-free
- Keto-friendly with suitable ingredient choices
Ingredients
- 1,134 g ground beef
- ½ cup chicken bone broth
- 113 g cream cheese
- 3 large bell peppers, sliced
- 1 large onion, sliced
- 8 slices provolone cheese
- 2 teaspoons sea salt
- ½ teaspoon garlic powder
- ½ teaspoon black pepper
- 1 teaspoon smoked paprika
- ½ tablespoon Italian seasoning
Instructions
- Preheat oven to 350°F (177°C).
- Prepare an 8 × 11.5-inch baking dish.
- Heat a large skillet over medium-high heat.
- Add ground beef and cook until completely browned, breaking it apart as it cooks.
- Season the beef with salt and pepper.
- Add sliced bell peppers and onion. Cook until vegetables become slightly tender while keeping some texture.
- Add garlic powder, Italian seasoning, and smoked paprika. Stir well.
- Add chicken bone broth and cream cheese. Stir continuously until the cream cheese melts completely and forms a smooth sauce.
- Transfer the beef mixture into the baking dish.
- Cover the top with overlapping provolone cheese slices.
- Bake for 8–12 minutes until the cheese melts and becomes lightly golden.
- Let rest for 5–10 minutes before serving.
Recipe Notes:
- For the juiciest casserole, avoid overcooking the ground beef before baking.
- Keep the peppers slightly firm for better texture after baking.
- Resting the casserole before serving helps the creamy filling set.
- This recipe increases protein by using a larger amount of ground beef while keeping the same rich cheesesteak flavor.
A Comfort Food Casserole With More Protein
This High-Protein Philly Cheesesteak Casserole combines everything people love about a classic cheesesteak sandwich into a simple baked dish. Instead of relying on bread, this version focuses on flavorful beef, vegetables, and cheese to create a filling meal.
The extra ground beef increases the protein content while maintaining the creamy, cheesy texture that makes cheesesteak-inspired recipes so satisfying. It is a great option for meal prep, busy weeknight dinners, or anyone looking for a comforting dish that fits a higher-protein lifestyle.
The best part is that the recipe does not feel like a “lighter” version. Every bite still delivers seasoned beef, sweet peppers, caramelized onion flavor, and plenty of melted provolone.
How to Make High-Protein Philly Cheesesteak Casserole
Brown the Ground Beef
Begin by heating a large skillet over medium-high heat. Add the ground beef and cook until completely browned, using a spatula to break the meat into smaller pieces.
Browning the beef is an important step because it develops deeper savory flavor. Since this recipe uses a generous amount of beef to increase protein, properly cooking and seasoning the meat ensures every portion remains flavorful.
Season the beef with sea salt and black pepper while it cooks. This allows the seasoning to blend throughout the casserole instead of only sitting on the surface.
Tip: If your ground beef releases a large amount of fat, drain some of it before continuing. Keeping a small amount helps maintain flavor and moisture.
Cook the Peppers and Onion
Once the beef is browned, add the sliced bell peppers and onion directly to the skillet.
These vegetables provide the signature cheesesteak flavor combination. The peppers add mild sweetness, while the onion creates a savory depth that balances the richness of the beef and cheese.
Cook for about 5–7 minutes until the vegetables soften slightly but still maintain some texture.
Tip: Do not overcook the vegetables at this stage. They will continue cooking in the oven, so keeping some firmness prevents a mushy casserole.
Create the Creamy Cheesesteak Sauce
Add garlic powder, Italian seasoning, and smoked paprika to the beef and vegetable mixture.
The smoked paprika adds a subtle smoky flavor that complements the beef, while Italian seasoning brings extra herb flavor without overpowering the classic cheesesteak profile.
Reduce the heat and add chicken bone broth and cream cheese.
Stir continuously until the cream cheese melts completely and creates a smooth, creamy sauce that coats the beef and vegetables.
Tip: Cut the cream cheese into smaller pieces before adding it. This helps it melt faster and creates a smoother texture.
Add Cheese and Bake
Transfer the creamy beef mixture into the prepared baking dish.
Arrange the provolone slices over the top, slightly overlapping them to ensure every serving gets a layer of melted cheese.
Bake for 8–12 minutes until the cheese is melted and lightly golden.
Allow the casserole to rest for 5–10 minutes before serving. This short resting time allows the sauce to thicken and makes portioning easier.
Ingredient Details and Substitution Tips
Ground Beef
Ground beef is the main protein source in this recipe. Using a larger amount increases the protein per serving while keeping the casserole hearty and satisfying.
For the best balance of flavor and texture, choose ground beef with moderate fat content. Extremely lean beef can work but may create a slightly drier casserole.
Substitutions:
- Ground turkey can be used for a leaner option.
- Ground chicken works but may need additional seasoning.
- Thinly sliced steak can create a more traditional Philly cheesesteak texture.
Cream Cheese
Cream cheese gives the casserole its creamy texture and helps combine the beef, vegetables, and seasonings into a rich filling.
Substitutions:
- Reduced-fat cream cheese can lower calories.
- Neufchâtel cheese can provide a similar texture.
- Greek yogurt can add creaminess, but it should be stirred in at lower heat to prevent curdling.
Bell Peppers
Bell peppers add freshness, color, and natural sweetness.
Choose firm peppers with smooth skin for the best flavor and texture.
Substitutions:
- Mushrooms add an earthy cheesesteak-inspired flavor.
- Extra onions can increase sweetness.
- A combination of red, yellow, and green peppers adds variety.
Provolone Cheese
Provolone creates the classic melted cheesesteak flavor. It melts smoothly and adds a slightly sharp, savory taste.
Substitutions:
- Mozzarella for a milder flavor.
- Monterey Jack for extra creaminess.
- White American cheese for a more traditional sandwich-style taste.
Equipment Alternatives
This recipe requires simple kitchen tools:
- Large skillet
- Baking dish
- Spatula
- Knife and cutting board
If you do not have the exact baking dish size, use a similar casserole dish. A larger dish will create a thinner layer, while a smaller dish may require a slightly longer baking time.
Recipe Variations and Serving Suggestions
Mushroom Cheesesteak Casserole
Add 1–2 cups sliced mushrooms with the peppers and onions for extra savory flavor.
Spicy Cheesesteak Casserole
Add:
- Sliced jalapeños
- Crushed red pepper flakes
- Pepper jack cheese instead of provolone
Extra Cheese Version
Add ½ cup shredded mozzarella over the provolone before baking for an extra cheesy topping.
Lower-Calorie Variation
To reduce calories:
- Use lean ground beef
- Use reduced-fat cream cheese
- Choose reduced-fat provolone
The recipe will still maintain its creamy texture and satisfying flavor.
Serving Suggestions
This casserole pairs well with:
- Roasted broccoli
- Side salad
- Cauliflower rice
- Steamed vegetables
- Pickles for a cheesesteak-inspired combination
For meal prep, divide the casserole into eight portions after cooking and store them individually for quick lunches or dinners.
Storage and Make-Ahead Instructions
Refrigerator Storage
Allow the casserole to cool completely before storing.
Place leftovers in an airtight container and refrigerate for up to 4 days.
Freezing Instructions
This casserole can be frozen for longer storage.
To freeze:
- Cool completely.
- Store in freezer-safe containers.
- Freeze for up to 3 months.
Thaw overnight in the refrigerator before reheating.
Reheating Instructions
For the best texture, reheat in the oven at 350°F (177°C) until warmed through.
Individual portions can also be microwaved for 1–2 minutes, stirring halfway through.
Make-Ahead Tips
Prepare the beef and vegetable mixture up to 2 days ahead. Store it in the refrigerator, then add the cheese topping and bake when ready.
Nutrition Facts (Estimated Per Serving)
Based on 8 servings:
| Nutrient | Amount per serving |
|---|---|
| Calories | 520 kcal |
| Protein | 43 g |
| Carbohydrates | 8 g |
| Fiber | 2 g |
| Net Carbs | 6 g |
| Fat | 36 g |
| Saturated Fat | 16 g |
| Cholesterol | 155 mg |
| Sodium | 1,050 mg |
Dietary Highlights:
- High-protein meal
- Low carbohydrate option
- Gluten-free
- Keto-friendly depending on ingredient choices
Allergens:
- Contains milk (cream cheese and provolone)
Nutrition values are estimates and may vary depending on the fat percentage of the ground beef and specific brands of cheese and broth used.
Frequently Asked Questions
Can I use steak instead of ground beef?
Yes. Thinly sliced steak can be used to create a more traditional Philly cheesesteak casserole. Cook the steak quickly to prevent it from becoming tough.
How can I make this casserole even higher in protein?
The current recipe already provides approximately 43 g of protein per serving. To increase protein further, you can add more lean beef or use a higher-protein cheese option while adjusting calories accordingly.
Can I make this casserole without cream cheese?
Yes. You can replace cream cheese with another creamy ingredient, but the texture will change slightly.
Why is my casserole watery?
Extra liquid usually comes from vegetables or beef. Browning the beef thoroughly and avoiding overcooking the peppers helps reduce excess moisture.
Can I freeze High-Protein Philly Cheesesteak Casserole?
Yes. It freezes well for up to 3 months when stored properly.
Is this recipe good for meal prep?
Yes. The casserole reheats well and keeps its flavor for several days, making it a convenient high-protein meal prep option.
Final Thoughts
This High-Protein Philly Cheesesteak Casserole delivers the flavors of a classic cheesesteak while offering a more protein-focused approach. The combination of seasoned beef, creamy sauce, peppers, onions, and melted provolone creates a satisfying meal that feels indulgent while fitting into a balanced eating plan.
It is proof that high-protein recipes can still be comforting, flavorful, and family-friendly. Whether you prepare it for weekly meal prep or a simple dinner, this casserole brings classic flavors to the table with minimal effort.
Try it with your favorite toppings or side dishes, and share your favorite variations with others who enjoy easy, protein-packed meals.
