High Protein Low Carb Philly Cheesesteak Casserole Recipe

Introduction

Looking for a hearty, satisfying dinner that won’t derail your low-carb lifestyle? This High Protein Low Carb Philly Cheesesteak Casserole packs all the savory flavors of the iconic sandwich—think tender beef, sautéed peppers and onions, and gooey cheese—without the bread or carb overload. It’s a crowd-pleasing weeknight family favorite or the perfect meal prep solution for anyone focusing on high-protein, low-carb eating.

Why This Philly Cheesesteak Casserole Delivers Big Flavor

What sets this casserole apart is the perfect blend of sirloin steak, melty cheese, and classic Philly veggies in a format that’s easy to serve and reheat. The bold, savory flavors are complemented by a luscious and creamy texture, all without a bun in sight. Plus, it’s simple to customize—add mushrooms, swap in chicken, or use your favorite cheese blend.

Crafting a Protein-Packed Base

Start with high-quality sirloin or ribeye steak sliced thin, ensuring each forkful is tender and packed with flavor. The casserole combines beef with sautéed onions and bell peppers, maximizing fiber and nutrients while keeping carbs in check. A creamy mixture of Greek yogurt and eggs brings creaminess and ups the protein factor, holding everything together underpinning the robust Philly cheesesteak savor in every bite.

Effortless Assembly for an Anytime Meal

After browning the steak and sautéing the veggies, simply layer everything in a casserole dish, pour over the protein-rich egg mixture, and top with lots of cheese. Bake until bubbly and golden—it’s that easy! The result is a balanced meal that’s satisfying enough for dinner and ideal for prepping lunches ahead of time.

Tasty Serving Suggestions

Pair this casserole with a side salad, roasted broccoli, or sautéed greens for a complete low-carb plate. Garnish with fresh parsley or a sprinkle of extra cheese and serve hot for optimal enjoyment. If you like a little heat, top with sliced jalapeños or a dash of hot sauce.

Nutritional Information and Serving Size

This recipe yields 6 hearty portions. Each serving contains approximately 390 calories, 38g protein, 7g net carbs, and 22g fat (nutrition will vary slightly depending on cheese and ingredient choices). It’s a perfect choice for high-protein meal planning and anyone following a keto or low-carb lifestyle.

💡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 meal planning.

Instructions

1. Preheat your oven to 375°F. Grease a 9×13-inch casserole dish.
2. In a large skillet, heat olive oil over medium-high heat. Add sliced onions, bell peppers, and mushrooms (if using). Sprinkle with a pinch of salt. Sauté for 5–6 minutes until softened and beginning to caramelize. Transfer to the casserole dish.
3. Add steak to the hot skillet. Season with salt, pepper, garlic powder, and smoked paprika. Sear for 2–3 minutes until just browned (do not overcook, as it will bake further).
4. Layer the cooked steak over the veggies in the casserole dish.
5. In a medium bowl, whisk together eggs and Greek yogurt (or sour cream) until smooth. Stir in Worcestershire sauce if using.
6. Pour the egg mixture evenly over the steak and veggies. Sprinkle the provolone and mozzarella cheese evenly on top.
7. Bake uncovered for 22–25 minutes, or until bubbling and golden brown. Let cool for 5–10 minutes. Garnish with parsley, slice, and serve.

Weekly Meal Planning

This casserole is a powerhouse addition to your weekly meal prep—it’s great for prepping multiple servings ahead and reheats beautifully. Save and schedule this recipe to effortlessly plan the best days for prepping and get smart shopping lists that combine ingredients for all your planned meals.

Planning Benefits:

• Automatically calculates how much steak, eggs, cheese, and other ingredients you’ll need for your entire week
• Organizes your shopping list by sections—meat, dairy, produce—so you zip through the store faster
• Reduces duplicate purchases and wasted groceries
• Makes high-protein, low-carb meal prep convenient and stress-free

Pro tip: When adding this casserole to your week, coordinate with your other recipes that use similar ingredients (like eggs or yogurt) so your shopping list adds everything up—no forgotten items or overbuying!

Cook and Prep Times

Prep Time: 20 minutes
Cook Time: 25 minutes
Total Time: 45 minutes (plus cooling time)

This High Protein Low Carb Philly Cheesesteak Casserole makes healthy eating practical and delicious—a streamlined recipe you’ll want in your regular meal planning rotation!