
Here’s a detailed, unique article about Philly Cheesesteak Casserole, including a full step-by-step method:
Philly Cheesesteak Casserole: A Comfort Food Classic, Reinvented
If you love the flavors of a classic Philly cheesesteak but want a cozy, all-in-one meal, this Philly Cheesesteak Casserole is your ultimate solution. Creamy, cheesy, and packed with tender steak and peppers, it’s a dish that turns the beloved sandwich into a hearty casserole that’s perfect for family dinners, potlucks, or even meal prep for the week.
Ingredients
To make this casserole, gather the following ingredients:
- 1 lb (450g) thinly sliced beef steak (ribeye, sirloin, or even thinly sliced roast beef)
- 1 medium onion, diced
- 1 green bell pepper, diced
- 1 red bell pepper, diced
- 2 cloves garlic, minced
- 3 tablespoons butter
- 3 tablespoons all-purpose flour
- 2 cups milk (whole milk preferred)
- 1 teaspoon Dijon mustard (optional, for extra flavor)
- Salt and black pepper, to taste
- 2 cups shredded cheese (Cheddar, Provolone, or a mix)
- 1 cup shredded mozzarella (for topping)
- 1 teaspoon Worcestershire sauce
- 4-5 slices of hoagie or sandwich bread, cubed or torn into bite-size pieces
- Fresh parsley, chopped, for garnish (optional)
Step-by-Step Method
Step 1: Prepare the Steak and Veggies
- Heat a large skillet over medium-high heat and add 1 tablespoon of butter.
- Add the thinly sliced steak and sear until browned but still tender, about 3–4 minutes. Remove from the pan and set aside.
- In the same skillet, add the remaining butter, diced onions, and bell peppers. Sauté until softened, about 5 minutes.
- Add minced garlic and cook for 30 seconds until fragrant. Set aside with the cooked steak.
Step 2: Make the Creamy Cheese Sauce
- In a medium saucepan, melt 3 tablespoons of butter over medium heat.
- Whisk in flour to create a roux, cooking for 1–2 minutes to remove the raw flour taste.
- Slowly add milk, whisking constantly to avoid lumps.
- Stir in Dijon mustard, Worcestershire sauce, salt, and pepper.
- Once the sauce thickens (about 5–6 minutes), remove from heat and mix in 2 cups of shredded cheese until smooth and creamy.









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