If you love the classic Philly cheesesteak sandwich, this Ground Beef Philly Cheesesteak Casserole is a delicious and easy way to enjoy those same flavors in a comforting family dinner. Made with savory ground beef, tender green bell peppers, sweet onions, and plenty of melted provolone cheese, this casserole is hearty, cheesy, and full of flavor.
Everything comes together in one skillet before being transferred to the oven for a quick bake. It’s perfect for busy weeknights, family dinners, or anyone looking for an easy low-carb dinner packed with protein and satisfying ingredients.
Recipe Overview
| Details | Information |
| Prep Time | 15 minutes |
| Cook Time | 25 minutes |
| Total Time | 40 minutes |
| Servings | 6 |
| Cuisine | American |
| Course | Main Course, Dinner |
| Cooking Method | Stovetop and Baking |
| Difficulty | Easy |
Why You’ll Love This Recipe
This casserole delivers all the delicious flavors of a traditional Philly cheesesteak without the need to prepare individual sandwiches. The combination of seasoned ground beef, sautéed peppers, sweet onions, and melted cheese creates a rich and satisfying meal that the whole family will enjoy.
It’s also budget-friendly, easy to customize, and perfect for meal preparation. With simple ingredients and minimal preparation, you can have a comforting homemade dinner ready in less than an hour.
Ingredients
| Ingredient | Quantity |
| Lean ground beef | 1½ lbs (680 g) |
| Green bell pepper, chopped | 1 large |
| Yellow onion, chopped | 1 medium |
| Olive oil | 1 tbsp |
| Garlic powder | 1 tsp |
| Salt | 1 tsp |
| Black pepper | ½ tsp |
| Worcestershire sauce | 1 tbsp (optional) |
| Shredded provolone cheese | 1½ cups |
| Fresh parsley, chopped | 1 tbsp |
You can substitute mozzarella cheese if provolone is unavailable.
Step-by-Step Instructions
Step 1 – Preheat the Oven
Preheat your oven to 375°F (190°C). Lightly grease a 9 × 13-inch baking dish with cooking spray or a little olive oil.
Step 2 – Sauté the Vegetables
Heat the olive oil in a large skillet over medium heat. Add the chopped green bell pepper and yellow onion.
Cook for approximately 5–7 minutes, stirring occasionally, until the vegetables soften and the onions become translucent. Remove the vegetables from the skillet and set aside.
Step 3 – Cook the Ground Beef
Using the same skillet, add the ground beef. Cook over medium-high heat for approximately 7–9 minutes, breaking it apart with a spatula until browned and fully cooked.
Drain any excess grease to prevent the casserole from becoming oily.
Step 4 – Season the Beef
Return the cooked peppers and onions to the skillet. Add the garlic powder, salt, black pepper, and Worcestershire sauce.
Stir everything together until the seasonings are evenly distributed and the beef is flavorful.
Step 5 – Assemble the Casserole
Transfer the ground beef and vegetable mixture into the prepared baking dish. Spread it evenly to create a uniform layer.
Step 6 – Add the Cheese
Sprinkle the shredded provolone cheese evenly over the beef mixture. Make sure the entire surface is covered for a delicious cheesy topping.
Step 7 – Bake Until Bubbly
Place the baking dish in the preheated oven and bake for 15–20 minutes, or until the cheese is completely melted, bubbly, and lightly golden around the edges.
Step 8 – Garnish and Serve
Remove the casserole from the oven and let it rest for approximately 5 minutes. Sprinkle freshly chopped parsley over the melted cheese.
Serve warm and enjoy!
Best Tips for Perfect Philly Cheesesteak Casserole
For the best flavor, allow the peppers and onions to soften slowly before combining them with the beef. This brings out their natural sweetness and creates a more delicious filling. Drain excess grease from the cooked beef to prevent a greasy casserole, and use freshly shredded cheese whenever possible for smoother melting.
Let the casserole rest for a few minutes before serving so the ingredients settle and each portion is easier to scoop.
Best Ingredient Options
Lean ground beef is an excellent choice because it provides plenty of savory flavor without producing too much grease. Provolone is the traditional cheese choice for Philly cheesesteak recipes, offering a smooth and creamy texture when melted.
Mozzarella is a great alternative if you prefer a mild, stretchy cheese. You can also use red or yellow bell peppers for a slightly sweeter flavor.
Recipe Variations
For a mushroom Philly cheesesteak casserole, add 1 cup of sliced mushrooms and sauté them with the peppers and onions. For extra cheesiness, combine provolone with mozzarella or cheddar.
If you enjoy a little heat, add sliced jalapeños or a pinch of red pepper flakes. You can also turn this recipe into a complete meal by mixing in cooked cauliflower rice or serving it over roasted potatoes.
What to Serve With Ground Beef Philly Cheesesteak Casserole
This hearty casserole pairs beautifully with roasted broccoli, garlic green beans, cauliflower rice, a fresh garden salad, or roasted vegetables.
For a more filling comfort-food dinner, serve it with mashed potatoes, baked potatoes, or warm dinner rolls.
Make-Ahead Instructions
You can prepare the beef and vegetable mixture up to 24 hours in advance. Allow it to cool completely, then store it in an airtight container in the refrigerator.
When ready to bake, transfer the mixture into a greased baking dish, add the shredded cheese, and bake at 375°F (190°C) until heated through and bubbly. If the mixture is cold from the refrigerator, allow extra baking time.
Storage Instructions
Store leftover casserole in an airtight container in the refrigerator for up to 3–4 days.
Allow the casserole to cool before covering and refrigerating. Divide it into individual portions for convenient lunches and quick dinners throughout the week.
Reheating Instructions
To reheat individual portions, place them in a microwave-safe dish and heat for 1–2 minutes, or until warmed through.
For larger portions, cover the baking dish with foil and reheat in the oven at 325°F (165°C) for approximately 15–20 minutes.
Freezing Instructions
This casserole can be frozen for up to 2–3 months. For best results, prepare the beef and vegetable mixture, allow it to cool, and freeze it separately before adding the cheese.
You can also freeze fully baked portions in freezer-safe containers. Thaw overnight in the refrigerator before reheating until thoroughly hot.
Common Mistakes to Avoid
Using ground beef without draining excess grease can make the casserole oily. Overcooking the peppers and onions may also cause them to lose their texture. Avoid adding too much salt before tasting, especially if your cheese and Worcestershire sauce are already salty.
Finally, don’t bake the casserole for too long. Once the cheese is melted and bubbly, it’s ready to serve.
Nutrition Estimate
Approximate values per serving, based on 6 servings.
| Nutrient | Amount |
| Calories | 390 kcal |
| Protein | 34 g |
| Carbohydrates | 7 g |
| Fat | 25 g |
| Saturated Fat | 11 g |
| Fiber | 1 g |
| Sugar | 3 g |
| Sodium | 620 mg |
Nutrition information is an estimate and may vary depending on the ingredients and brands used.
Frequently Asked Questions
1. Can I use mozzarella instead of provolone?
Absolutely! Mozzarella melts beautifully and gives the casserole a creamy, stretchy cheese topping. Provolone offers a more traditional Philly cheesesteak flavor.
2. Can I add mushrooms to this casserole?
Yes! Sliced mushrooms are a delicious addition. Sauté them with the peppers and onions until softened before combining everything with the beef.
3. Is this Philly cheesesteak casserole low-carb?
Yes. The basic recipe contains no bread or pasta, making it a naturally lower-carbohydrate dinner option. Check your Worcestershire sauce and other ingredient labels for added sugars.
4. Can I prepare this recipe ahead of time?
Yes. Prepare the seasoned beef and vegetables in advance and refrigerate them. Add the cheese just before baking for the best texture.
5. What type of ground beef works best?
Lean ground beef, such as 90/10 or 85/15, works well. It provides rich flavor while helping prevent excess grease.
6. Can I make this casserole without Worcestershire sauce?
Yes. Worcestershire sauce is optional. You can simply leave it out or add a little extra garlic powder and black pepper for additional flavor.
Final Thoughts
This Ground Beef Philly Cheesesteak Casserole is an easy, delicious, and comforting dinner that brings all the classic flavors of a Philly cheesesteak straight to your table. With juicy seasoned beef, tender peppers and onions, and a generous layer of melted cheese, every serving is satisfying and full of flavor.
Whether you’re preparing a quick weeknight meal, feeding the family, or looking for an easy meal-prep recipe, this cheesy ground beef casserole is one you’ll want to make again and again!