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## Instructions
### 1. **Sauté the Veggies**
In a large skillet, heat olive oil or butter over medium heat. Add sliced onions and bell peppers. Cook until softened and slightly caramelized, about 7-10 minutes. Add minced garlic and sauté for another minute. Remove veggies from skillet and set aside.
### 2. **Cook the Beef**
In the same skillet, add beef strips. Season with salt, pepper, and oregano. Cook until browned and just cooked through, about 5-7 minutes. Stir in Worcestershire sauce and beef broth, letting it simmer for 2-3 minutes until slightly reduced.
### 3. **Assemble the Casserole**
Preheat oven to 375°F (190°C). In a baking dish, spread cooked rice, pasta, or bread cubes if using as a base. Layer beef mixture evenly over the base. Top with sautéed peppers and onions, then sprinkle with shredded cheeses.
### 4. **Bake**
Bake uncovered for 20-25 minutes, or until cheese is melted, bubbly, and golden brown on top.
### 5. **Serve**
Let the casserole rest for a few minutes before serving. Scoop onto plates and enjoy the ultimate Philly cheesesteak flavor in every bite!
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## Tips for the Best Philly Cheesesteak Casserole
* Use thinly sliced beef to mimic authentic cheesesteak texture — ask your butcher or buy pre-sliced.
* Swap provolone with your favorite melting cheese, like American or fontina.
* For extra flavor, add sautéed mushrooms or a dash of hot sauce.
* Skip the base if you prefer a lower-carb option and bake the beef and veggies straight in the dish.
* Leftovers reheat beautifully for next-day lunches.
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## Why This Casserole Is a Game-Changer
This casserole transforms the beloved Philly cheesesteak sandwich into a comforting, shareable dish that’s easier to make and just as delicious. It’s perfect for those who want to enjoy classic flavors without the mess of assembling sandwiches or grilling steak.
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## Final Thoughts
If you love the rich, cheesy, savory goodness of a Philly cheesesteak but want a fuss-free way to enjoy it, this **Philly Cheesesteak Casserole** is your go-to. With tender beef, sweet peppers and onions, and plenty of melty cheese, it’s a hearty meal that satisfies every time.
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Need a printable recipe or ideas for making this slow cooker-friendly? Just ask!
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