Rich, cheesy, and packed with savory beef and peppers, Philly Cheesesteak Casserole transforms the classic sandwich into an easy, low-carb comfort food. Layers of seasoned ground beef, sautéed onions and bell peppers, melted provolone, and a creamy egg custard create a hearty casserole that’s perfect for busy weeknights or meal prep.
Prep Time
- Prep Time: 15 minutes
- Cook Time: 40 minutes
- Total Time: 55 minutes
- Servings: 6
- Calories: Approximately 420 kcal per serving
Ingredients
- 1½ pounds ground beef
- 2 bell peppers, chopped
- ½ onion, chopped
- 2 teaspoons minced garlic
- 1 teaspoon seasoned salt
- 8 slices provolone cheese
- 4 large eggs
- ¼ cup heavy whipping cream
- 2 teaspoons Worcestershire sauce
Instructions
Step 1: Prepare the Oven
Preheat your oven to 350°F (175°C). Grease a 9×9-inch baking dish generously with butter or nonstick cooking spray.
Step 2: Brown the Beef
Heat a large skillet over medium-high heat. Add the ground beef and cook, breaking it apart until partially browned.
Step 3: Cook the Vegetables
Add the chopped bell peppers and onion to the skillet. Continue cooking until the beef is fully browned and the vegetables are tender.
Step 4: Season
Stir in the minced garlic and seasoned salt. Cook for another 30 seconds until fragrant.
Drain the beef mixture thoroughly to remove excess grease.
Step 5: Assemble
Spread the beef and vegetable mixture evenly into the prepared baking dish.
Lay the provolone cheese slices evenly over the top.
Step 6: Make the Custard
In a medium bowl, whisk together:
- Eggs
- Heavy whipping cream
- Worcestershire sauce
Pour the mixture evenly over the cheese layer.
Step 7: Bake
Bake uncovered for 35–40 minutes, or until the casserole is set and the cheese is bubbly and lightly golden.
Allow the casserole to rest for 5–10 minutes before slicing.
Serve hot.
Tips
- Drain the beef thoroughly for clean slices.
- Freshly sliced provolone melts more smoothly than processed cheese.
- Let the casserole rest before serving so it holds together better.
- Dice the vegetables into uniform pieces for even cooking.
- Use lean ground beef to reduce excess grease.
Variations
Mushroom Philly
Add 8 ounces of sautéed sliced mushrooms.
Spicy Version
Mix in diced jalapeños or crushed red pepper flakes.
Extra Cheesy
Top with shredded mozzarella or Monterey Jack before baking.
Steak Version
Replace the ground beef with thinly sliced ribeye steak.
Storage
Refrigerator: Store in an airtight container for up to 4 days.
Freezer: Freeze individual portions for up to 2 months.
Reheat: Warm in the microwave or a 350°F oven until heated through.
Serving Suggestions
Serve alongside:
- Roasted broccoli
- Green salad
- Garlic green beans
- Cauliflower mash
- Roasted asparagus
Frequently Asked Questions
Can I make this ahead of time?
Yes. Assemble the casserole, cover, and refrigerate up to 24 hours before baking.
Can I substitute the cheese?
Absolutely. Mozzarella, Swiss, Monterey Jack, or white American cheese all work well.
Why is my casserole watery?
The beef wasn’t drained well enough or the vegetables released excess moisture. Thoroughly draining the meat helps prevent this.
Is this keto-friendly?
Yes. With no bread or pasta, this casserole is naturally low in carbohydrates and keto-friendly.
Nutrition (Approximate Per Serving)
- Calories: 420
- Protein: 34g
- Carbohydrates: 6g
- Fat: 29g
- Fiber: 1g
- Sugar: 3g
Final Thoughts
Philly Cheesesteak Casserole delivers all the bold flavors of the famous sandwich in an easy, cheesy baked meal. Loaded with seasoned beef, tender peppers, onions, creamy provolone, and a rich custard, it’s a comforting dinner that’s simple enough for weeknights yet satisfying enough for guests.
