Name: 1 High Protein Low Carb Philly Cheesesteak Casserole Recipe
Prep time: 15 min
Cook time: 25 min
Total time: 40 min
Cuisine: American
Ingredients: 1 pound ground beef; 2 green bell peppers sliced; 1 medium onion sliced; 1 cup sliced mushrooms; 4 ounces cream cheese; 6 slices provolone cheese; 1 teaspoon garlic powder; 0.5 teaspoon salt; 0.5 teaspoon black pepper

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Enjoy all the classic flavors of a Philadelphia favorite without the heavy bread. This dish is perfect for anyone following a ketogenic lifestyle or simply looking to increase their daily protein intake. I started making this version when I realized my family loved the filling more than the hoagie rolls. It saves time, reduces cleanup, and tastes even better the next day. You will appreciate how the melted provolone binds the savory beef and peppers together into a satisfying meal.

Why You Will Love This High Protein Low Carb Philly Cheesesteak Casserole Recipe

This meal fits perfectly into a busy lifestyle. You get a massive hit of protein with very few net carbs. It uses simple ingredients you likely already have in your kitchen. The combination of seasoned beef and melted cheese provides a comfort food feel without the carb crash later. I am telling you, it is the best way to get that steakhouse flavor on a random Tuesday night without any of the guilt.

Ingredients for Your High Protein Low Carb Philly Cheesesteak Casserole Recipe

1.5 lbs Lean ground beef or thinly sliced sirloin
2 Large green bell peppers sliced into strips
1 Medium yellow onion thinly sliced
8 oz Sliced white mushrooms
2 Cloves garlic minced
4 oz Softened cream cheese
1/2 cup Beef broth
6 Slices provolone cheese
1 teaspoon Salt
1/2 teaspoon Black pepper
1 tablespoon Olive oil

How to Make This High Protein Low Carb Philly Cheesesteak Casserole Recipe

I usually spend about 15 minutes getting everything prepped and then it takes about 20 minutes to bake in the oven. It is so fast and easy.

Step 1: Sauté the Vegetables

Heat your olive oil in a large skillet over medium high heat. Add those sliced peppers, onions, and mushrooms. Cook them for about 5 to 7 minutes until they are soft and start to look slightly browned. Make sure you add the minced garlic during the last minute so you do not burn it. Once they look good, just remove the vegetables from the pan and set them aside for a moment.

Step 2: Brown the Beef

In that same skillet, go ahead and add your ground beef or sliced sirloin. Season it well with salt and pepper. Cook it until the meat is fully browned and you do not see any pink left. This is a common point of confusion but you really need to drain any excess fat from the pan. Draining the fat ensures a firm texture so your casserole does not get greasy.

Step 3: Combine and Simmer

Turn your heat down to medium low. Stir in the softened cream cheese and the beef broth. Keep mixing until the cheese melts into a smooth sauce that coats all the meat. Now fold those sautéed vegetables back into the pan. Stir everything together until it is well combined and looks delicious.

Step 4: Bake to Perfection

Transfer your mixture into a 9 by 13 inch baking dish. Spread it out so it is nice and even. Lay the provolone cheese slices across the top to cover the entire surface. Place the dish in your oven that you preheated to 400 degrees Fahrenheit. Bake it for 15 to 20 minutes until the cheese is bubbly and golden brown.

Tips for the Best High Protein Low Carb Philly Cheesesteak Casserole Recipe

To prevent a watery casserole, make sure your mushrooms are fully cooked down in the skillet before you add them to the dish. Mushrooms release a lot of liquid when they heat up. If you prefer a bit of spice, you can add a pinch of red pepper flakes to the beef while it browns. Using thinly sliced sirloin instead of ground beef provides a more authentic texture but ground beef is a fantastic budget friendly alternative that my kids actually prefer.

Frequently Asked Questions

Can I freeze this casserole?

Yes, you can definitely freeze this dish. Just let it cool completely before you put it in an airtight container. It will stay fresh for up to three months. When you want to eat it, just thaw it in the refrigerator overnight before you reheat it in the oven.

What can I serve with this meal?

Since this is a low carb dish, it pairs beautifully with a fresh green salad or some roasted cauliflower. If you are not strictly following a low carb plan, you can serve it over a small portion of brown rice or even inside a whole wheat wrap.

How do I store leftovers?

Place any remaining portions in a sealed container and keep them in the fridge. The flavors actually deepen overnight which is great. It stays fresh for up to four days. You can just reheat individual portions in the microwave for about 2 minutes.

Nutritional Information

This recipe makes about 6 servings and the numbers below are estimated for each serving.

Calories: 380 kcal
Protein: 32g
Fat: 26g
Total Carbs: 6g
Fiber: 1g
Net Carbs: 5g