Get all the savory satisfaction of a Philly cheesesteak—without the carbs! This Cheesy Low Carb Philly Cheesesteak Casserole transforms the iconic sandwich into a rich, cheesy, and protein-packed bake. Juicy beef, sautéed peppers and onions, and gooey melted cheese come together in a one-dish dinner that’s comforting, filling, and keto-friendly.
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Why You’ll Love This Recipe
Low-Carb & Keto-Friendly – No bread, just flavorful goodness.
All the Classic Flavors – Tastes just like your favorite Philly sandwich.
Hearty & Filling – Packed with protein and healthy fats.
One-Pan Dinner – Minimal cleanup, maximum comfort.
Perfect for Meal Prep – Tastes great as leftovers, too.
Ingredients You’ll Need
1½ lbs ground beef (or thinly sliced steak)
1 tbsp olive oil (if using steak)
1 green bell pepper, sliced
1 red bell pepper, sliced
1 small yellow onion, sliced
2 cloves garlic, minced
1 tsp Worcestershire sauce
1 tsp Italian seasoning
Salt and black pepper to taste
4 oz cream cheese, softened
1 cup shredded mozzarella cheese
1 cup shredded provolone or Monterey Jack cheese
Optional: chopped parsley for garnish
Tools You’ll Need
Large skillet
Mixing spoon or spatula
9×13-inch casserole dish
Measuring cups and spoons
Oven mitts
Step-by-Step Instructions
Step 1: Preheat the Oven
Preheat your oven to 375°F (190°C).
Grease a 9×13-inch casserole dish and set aside.
Step 2: Cook the Meat
In a large skillet over medium-high heat, cook ground beef until browned.
If using steak, sear sliced steak in olive oil until just cooked through.
Drain excess fat and season with salt, pepper, Worcestershire sauce, and Italian seasoning.
Step 3: Sauté the Veggies
In the same skillet, add bell peppers and onion.
Cook for 5–7 minutes until soft and slightly caramelized.
Stir in minced garlic and cook for 1 more minute.
Step 4: Mix the Filling
Add cream cheese to the skillet and stir until melted and fully combined with the meat and veggies.
Step 5: Assemble the Casserole
Transfer the meat and veggie mixture into the prepared baking dish.
Sprinkle mozzarella and provolone cheese evenly over the top.
Step 6: Bake
Bake for 15–18 minutes, or until cheese is melted and bubbly.
For a golden top, broil for an additional 2–3 minutes.
Step 7: Serve
Garnish with chopped parsley if desired.
Serve hot with a side salad or roasted veggies for a complete low-carb meal.
Tips for the Best Cheesesteak Casserole
Use High-Quality Cheese – Adds richness and better meltability.
Don’t Overcook the Beef – Keeps it tender and juicy.
Add Mushrooms – Sautéed mushrooms give an earthy depth.
Customize – Add hot sauce, spinach, or extra garlic for a twist.
Serving Suggestions
With a side of cauliflower rice or zucchini noodles
Spoon into lettuce wraps for a hand-held option
Pair with a crisp garden salad or roasted broccoli
Top with jalapeños for a spicy variation
How to Store & Reheat
Storing:
Refrigerate leftovers in an airtight container for up to 4 days.
Freezing:
Freeze the casserole (uncooked or cooked) for up to 2 months.
Thaw in the fridge overnight before reheating.
Reheating:
Oven – Bake at 350°F until warmed through
Microwave – Heat in 30-second bursts, stirring in between
Frequently Asked Questions
Can I use steak instead of ground beef?
Yes—thinly sliced ribeye or sirloin is perfect for a traditional flavor.
Is this casserole gluten-free?
Yes, all ingredients are naturally gluten-free.
Can I make this dairy-free?
Try dairy-free cheese alternatives and omit the cream cheese for a lighter version.
Can I prep it ahead?
Absolutely. Assemble up to 24 hours in advance and bake when ready to serve.
Final Thoughts
This Cheesy Low Carb Philly Cheesesteak Casserole is proof that comfort food can be both delicious and guilt-free. Whether you’re following a keto diet or just cutting back on carbs, this savory, melty casserole hits all the right notes. It’s easy, versatile, and satisfying enough to please even the pickiest eaters.
Try it tonight and taste the low-carb love in every bite!
Preparation Time: 15 minutes
Cooking Time: 20 minutes
Total Time: 35 minutes
Cuisine: American
Nutritional Information (Per Serving):
Calories: 350 | Protein: 24g | Carbohydrates: 5g | Fat: 26g | Fiber: 1g | Sodium: 480mg
Cheesy Low Carb Philly Cheesesteak Casserole
- Prep Time: 15 minutes
- Cook Time: 20 minutes
- Total Time: 35 minutes
- Cuisine: American
Description
Get all the savory satisfaction of a Philly cheesesteak—without the carbs! This Cheesy Low Carb Philly Cheesesteak Casserole transforms the iconic sandwich into a rich, cheesy, and protein-packed bake. Juicy beef, sautéed peppers and onions, and gooey melted cheese come together in a one-dish dinner that’s comforting, filling, and keto-friendly.
Want more low-carb comfort food recipes like this delivered straight to your inbox? Subscribe now and enjoy guilt-free favorites any night of the week.
Ingredients
1½ lbs ground beef (or thinly sliced steak)
1 tbsp olive oil (if using steak)
1 green bell pepper, sliced
1 red bell pepper, sliced
1 small yellow onion, sliced
2 cloves garlic, minced
1 tsp Worcestershire sauce
1 tsp Italian seasoning
Salt and black pepper to taste
4 oz cream cheese, softened
1 cup shredded mozzarella cheese
1 cup shredded provolone or Monterey Jack cheese
Optional: chopped parsley for garnish
Instructions
Step 1: Preheat the Oven
Preheat your oven to 375°F (190°C).
Grease a 9×13-inch casserole dish and set aside.
Step 2: Cook the Meat
In a large skillet over medium-high heat, cook ground beef until browned.
If using steak, sear sliced steak in olive oil until just cooked through.
Drain excess fat and season with salt, pepper, Worcestershire sauce, and Italian seasoning.
Step 3: Sauté the Veggies
In the same skillet, add bell peppers and onion.
Cook for 5–7 minutes until soft and slightly caramelized.
Stir in minced garlic and cook for 1 more minute.
Step 4: Mix the Filling
Add cream cheese to the skillet and stir until melted and fully combined with the meat and veggies.
Step 5: Assemble the Casserole
Transfer the meat and veggie mixture into the prepared baking dish.
Sprinkle mozzarella and provolone cheese evenly over the top.
Step 6: Bake
Bake for 15–18 minutes, or until cheese is melted and bubbly.
For a golden top, broil for an additional 2–3 minutes.
Step 7: Serve
Garnish with chopped parsley if desired.
Serve hot with a side salad or roasted veggies for a complete low-carb meal.
Notes
Use High-Quality Cheese – Adds richness and better meltability.
Don’t Overcook the Beef – Keeps it tender and juicy.
Add Mushrooms – Sautéed mushrooms give an earthy depth.
Customize – Add hot sauce, spinach, or extra garlic for a twist.
