High Protein Low Carb Philly Cheesesteak Casserole Recipe

Introduction

If you crave hearty flavors but want to keep things light and nutrient-packed, this High Protein Low Carb Philly Cheesesteak Casserole recipe is the answer. It features all the savory, cheesy, meaty goodness of a classic Philly cheesesteak—without the bread—making it a crowd pleaser for family dinners, weeknight meal preps, or potlucks. This dish is loaded with protein and flavor, yet skips the heavy carbs, making it ideal for anyone following a low-carb or keto-inspired eating plan.

Why This Philly Cheesesteak Casserole Works

This recipe transforms the iconic sandwich into a satisfying, one-pan casserole that’s easy to prep ahead. Using lean beef steak, bell peppers, onions, and a creamy blend of cheese, it delivers all the classic Philly flavors while keeping carbs low and protein high. It’s versatile, filling, and reheats beautifully, which makes it perfect for meal planning and leftovers.

Optimizing for High Protein & Low Carb

To amp up the protein while cutting back on carbs, this recipe skips the traditional bread in favor of extra veggies and lean cuts of steak. Low-fat cream cheese and part-skim mozzarella provide rich texture without excessive fat. The result: a melt-in-your-mouth casserole packed with muscle-building protein, fiber-rich vegetables, and minimal net carbs.

Assembling Your Casserole

The real magic happens when you layer sautéed onions, peppers, and mushrooms with thinly sliced steak, creamy cheese mixture, and a topping of melted provolone or mozzarella. Each bite delivers the irresistible combination of juicy beef, sweet peppers, and rich cheese, but in a lighter, totally oven-friendly form.

Serving Suggestions for a Complete Meal

This casserole is delicious as is, but you can easily round out the meal with a simple side salad or roasted green beans for added nutrients. For an extra pop of flavor, garnish with fresh chopped parsley or a dash of crushed red pepper. It’s a comforting, restaurant-inspired dish that’s easy enough for a busy weeknight, yet impressive enough for guests.

Nutritional Information and Serving Size

This recipe makes about 6 hearty servings. Each serving typically contains around 33 grams of protein, 9 grams of net carbs, and approximately 320 calories—making it an excellent choice for high-protein, low-carb diets.

💡 Meal Planning Tip: Save this recipe to automatically generate an organized shopping list with all ingredients sorted by store section—perfect for efficient grocery trips and hassle-free meal planning.

Instructions

1. Preheat your oven to 375°F (190°C). Lightly grease a 9×13-inch casserole dish.
2. Heat 1 tablespoon of olive oil in a large skillet over medium-high heat. Sear the sliced steak for 2-3 minutes until just browned. Remove and set aside.
3. Add the remaining tablespoon of olive oil to the same skillet. Sauté onions, bell peppers, and mushrooms for 5-7 minutes, until they’re soft and slightly caramelized. Add garlic in the last minute and cook until fragrant.
4. In a mixing bowl, stir together cream cheese, Greek yogurt, Worcestershire sauce, soy sauce, salt, and black pepper until smooth and combined.
5. In your prepared casserole dish, layer half of the sautéed veggies and steak. Dollop half of the cheese mixture on top. Repeat with remaining steak, veggies, and cheese mixture.
6. Sprinkle shredded mozzarella evenly over the top, then lay the provolone slices across the casserole to cover.
7. Bake for 18-20 minutes, or until bubbly and cheese is melted and lightly golden.
8. Let cool for 5 minutes before slicing. Garnish with parsley or crushed red pepper, if desired. Serve warm.

Weekly Meal Planning

This high protein low carb Philly cheesesteak casserole is a meal prep superstar. Save and schedule this recipe for the week, and CookifyAI will automatically consolidate all ingredients into a smart shopping list that covers all your planned meals for the week.

Planning Benefits:

– Calculates total ingredient quantities across all meals, saving money and reducing waste
– Organizes your shopping list by grocery section for faster, easier trips
– Prevents missed or duplicate items—so you shop once and cook all week with confidence
– Makes meal prep and batch cooking more convenient and streamlined

Pro Tip: Schedule this recipe along with your favorite sides or breakfasts, and get a grocery list tailored to your exact weekly meal plan—no more guesswork!

Cook and Prep Times

Prep Time: 20 minutes
Cook Time: 25 minutes
Total Time: 45 minutes