Fusion Philly Cheesesteak Casserole Recipe

Fusion Philly Cheesesteak Casserole has all your favorite flavors —tender sirloin steak, bell peppers, broccoli, and cheese sauce —but with a twist. Asian inspired flavors meet Philly comfort food. A feel-good, stick to your ribs, fusion recipe uniting the umami flavors of two cultures.

Jump to:

• 🎥 Watch Recipe Video
• ❤️ Why You'll Love This
• How To Serve
• Ingredients
• Equipment
• Variations
• Instructions
• Top Tips
• Questions
• More Casserole Recipes
• ⭐ Let's Connect
• 💬 Comments

🎥 Watch Recipe Video

❤️ Why You'll Love This

"This isn't your typical Philly Cheesesteak Casserole! I've elevated the flavors with a unique and VERY delicious Asian twist. When my family took that first bite, their eyes lit up — that's when I knew I had a winner!"

Simple

There are only a few steps to make this recipe.  Start by sauteeing the beef, then stir fry the vegetables, add the remaining ingredients, and finally transfer to a casserole dish to finish off in the oven.

Umami Taste

Philly cheesesteak just got better. This casserole has all your favorite cheesesteak ingredients, but we decided to revamp it a bit and fuse Asian-inspired flavors into it.

What is Umami?

Did you know that umami is considered one of our five basic tastes (along with salty, sweet, bitter, and sour)? The taste of umami is hard to describe, but many people say it is "a pleasant savory taste, that's both dark and meaty."

The ingredients contributing to that umami taste in this recipe are soy sauce, cheese, onion, beef, broccoli, and sesame oil if you are using it.

Want to know more about umami? Check out 5 Facts about Umami or What is Umami?

Healthy

This casserole is a healthy homemade dinner recipe that's chock full of vegetables. You can feel good about serving your family.

• A gluten free, low carb, and keto philly cheesesteak casserole - no bread, rice, or fillers, other than vegetables are used in this recipe.
• The recipe uses cheese as the thickening agent in the sauce and broccoli as the filler instead of pasta, which dramatically reduces the number of carbs in the dish.
• Use coconut aminos in place of soy sauce or gluten free tamari if you are looking for a wheat free gluten free alternative.
• Want to lower the fat in this recipe? Use low fat or fat free cream cheese and sour cream. You can also use less cheese, if desired.

22.2 g fat | 9.3 g net carbs | 32.6 g protein

How To Serve

This Philly cheese steak casserole is quite hearty and an all-in-one meal. However, you can always jazz it up with a small side or an extra ingredient as a garnish:

• Feeling inspired by the Asian flavors? A small side of cauliflower rice could go a long way for the keto fans out there, but regular jasmine rice can be a nice substitute as well.
• Want to go all-American? For those of you who aren't watching the carbs in your diet, a few biscuits or slices of sourdough bread would compliment this recipe.
• Scoop up the casserole and literally serve on a buttered and toasted hoagie bun.
• Want more vegetables? When serving a hearty casserole a fresh green salad with a favorite dressing is a nice complement.
• Want topping ideas? Depending on your tastes and what flavor you are going for, you could top your casserole with any of the following: green onions, diced bell peppers, jalapenos, pepperocini, sour cream, french fried onions (yum), toasted panko, croutons, and so on.

Ingredients

Here are the ingredients you will need to make this Philly Cheesesteak Casserole recipe:

See the recipe card for quantities.

• Sirloin Steak - I used a Black Angus sirloin tip that was already thinly sliced from our our local meat market.  If you're in a hurry or short on time you can also use ground chuck. Other good options include flank steak or beef tenderloin (a bit pricier, though). You may need to trim the fat on these different cuts. You will want to slice your steak into ¼ inch by ¼ inch strips about 1 inch in length.
• Tamari (Soy Sauce) - I used a gluten free tamari soy sauce as it has a very strong Umami flavor and it is keto/low carb. Coconut aminos is also great gluten free and wheat free alternative that is popular with keto followers. You can also use a regular soy sauce.
• Worcestershire 
• Extra Virgin Olive oil
• Garlic - You can chop your own garlic, or you can save time and buy it pre-minced from the store.
• Ginger Paste - Buy this in a tube in the produce section of your local grocery store. You can also use finely minced fresh ginger.
• Onion - Chop into half moons.  Take both ends off and cut in half.  Flip cut side down on the cutting board and chop carefully.  Use a yellow or sweet onion.
• Peppers - Any color is fine, but I prefer at least one green pepper. As far as the other color it's your choice. If you want a sweeter taste go with yellow and orange peppers - they are sweeter than red or green. 
• Broccoli - This is the main filler and substitute for pasta in this recipe.  Cut the stems off and either break the broccoli down with a knife or just your hands into bite size pieces.
• Sour Cream
• Cream Cheese
• Shredded Cheese - I have made this casserole with both cheddar and provolone and both were delicious. Just about any mild cheese will work - mozzarella, provolone, cheddar, and jack.
• (Optional) Sesame Oil - Sesame oil adds an amazing taste and increases the Asian umami flavors in this casserole. Add it with the olive oil when you start to stir fry the vegetables.
• Kosher Salt or Sea Salt
• Ground Black Pepper

Equipment

Equipment and tools needed to make this casserole recipe:

• Cutting Board
• Chef Knife
• 12" Skillet - if you use an ovenproof skillet, like a 12" cast iron skillet, you can make this in one pan start to finish!
• Measuring Cups
• Measuring Spoons
• Mixing Spoon
• 8" x 11" Casserole Dish - this is basically a 2-Quart Casserole Dish
• Nonstick Spray
• Instant Read Thermometer

Variations

Here are a few ways you can vary or make substitutions to your Philly Cheesesteak Casserole:

• To replace some of the dairy (sour cream and cream cheese), make a cauliflower puree instead: boil a head of cauliflower in water until soft and then strain and save the liquid. Puree the cauliflower in a food processor while adding the boiling liquid back little by little, processing until you have reached the desired consistency.  Add the puree to the sauteed vegetables and meat, then add all other remaining ingredients (omit the sour cream and cream cheese). You may need to adjust some of the seasonings after adding.
• Take a wild trip and turn this recipe into an Indian-style dish.  Replace half the sour cream with the canned coconut milk!  Also, remove the worchestershire and soy, but add both garam masala and curry powder.  Start with 1 tablespoons of curry and 1 garam masala.  If you are unsure, start with a litte and more, doing a taste check.  Serve over cauliflower rice.
• Substitute chicken or turkey.  Use 1 pound precooked diced or shredded rotisserie chicken. You could also use ground chicken or turkey and cook it until done.

Instructions

Here's how to make this Asian-style Philly Cheesesteak Casserole:

For complete instructions, please see the printable recipe card below.

Saute Meat

Preheat oven to 350 degrees.

In a large 12" skillet, add 1 tablespoon of olive oil and preheat over medium-high heat.

Add the beef, then season with salt and pepper.

Stirring frequently, cook the steak for 3 minutes, or until it is no longer pink on the outside. (Note: the beef will continue cooking in the oven.)

Remove the steak and any juices from the skillet and set aside. Cover to keep warm.

Stir Fry Vegetables:

Add the remaining olive oil and optional sesame oil and heat. Then add the onions and broccoli and stir fry for 3 minutes- stirring frequently.

Add bell peppers, garlic, and ginger paste to the pan. Continue stir-frying until the vegetables are crisp-tender, about 4 minutes.

Add Remaining Ingredients

Remove pan from heat and add sour cream, cream cheese, Worcestershire, soy sauce, and half of the grated cheese. Stir until well incorporated.

Feel free to taste and make sure your sauce has the proper amount of salt or pepper (or to your liking).

Assemble Casserole

Spray a 2-quart casserole dish with nonstick spray. (Note: the dish below is approximately 11" x 8")

Transfer the mixture to your casserole/baking dish and top with the remaining shredded cheese.

(Note: if you have an ovenproof skillet, you don't need to use a casserole dish. Just top with cheese right in the pan and bake.)

Bake

Bake uncovered for 18 to 20 minutes or until the inside/middle is hot (155 degrees or higher) and the cheese is bubbly.

Serve

Top with optional toppings, adjust salt and pepper to taste. Enjoy!

Top Tips

• To help this recipe go quicker, prep all your ingredients in advance. Cutting the meat and vegetables takes the longest so, as with all recipes, I often prep on the weekends so my weeknight meals are a breeze.
• Have all of your ingredients near/around you.  This will allow a quicker cooking time and allow you to keep an eye on what your cooking so you don't burn it.
• If you have an ovenproof skillet you can make the entire casserole in that same pan and place it directly in the oven to bake- no need to transfer to a casserole dish.
• Remember to wash your hands when touching raw product such as beef.  Cross contamination is a leading cause to food born illness.
• Controlling the heat on your sauteed ingredients can benefit flavor.  If you don't hear a sizzle, turn it up a little bit to gain color and flavor.  If it seems to be gaining too much color, turn it down and pull off of heat to let the burner cool for a minute.

Questions

Can you make it ahead of time?

Yes, absolutely. You can prepare the casserole a couple of days ahead of time. Pull the casserole out of the refrigerator about 30 minutes before baking.

Because the casserole will still be cold in the center, the baking time will increase by about 15 to 25 minutes.  Otherwise, leave it out at room temperature for approximately 20 to 30 minutes before baking.

How long will this casserole keep?

Up to 4 days if stored in an airtight container.

Can you freeze this casserole?

Unfortunately, you cannot.  The cream can be frozen but may break when thawed and reheated. Good news! There won't be any left to freeze - it's that good. lol

More Casserole Recipes

If you are looking for more fantastic casserole recipes, check these out:

• EASY Jalapeño Popper Chicken Casserole
• Zucchini Ground Beef Taco Casserole
• Leftover Ham Casserole
• Parmesan Chicken Casserole
• Creamy Chicken and Asparagus Bake

⭐ Let's Connect

If you tried this Philly Cheesesteak Casserole Recipe, let me know! I'd love for you to come back and give the recipe a star rating and/or a review in the comments! 🙂 Let's stay connected, so please share photos of your creations with me and others on Instagram, Facebook, and Pinterest!

Fusion Philly cheesesteak casserole will be your new favorite dinner recipe! This casserole recipe has all your favorite flavors —tender sirloin steak, bell peppers, broccoli, and cheese sauce — Asian inspired flavor meets Philly comfort food. Keto Philly cheesesteak casserole is a feel-good, stick to your ribs, fusion dish uniting the umami flavors of two cultures. #phillycheesesteak #casserole #keto #lowcarb #fusionrecipe #umami #umamitaste #comfortfood