This Philly cheesesteak casserole is a healthy, family-friendly one-pan meal with tender beef, sautéed peppers and onions, and melty cheese. Quick to make and easy to customize, it’s perfect for weeknight dinners and picky eaters alike.
Preheat oven to 350°F. Heat a large skillet over medium-high heat. Add the ground beef and break it up into crumbles as it cooks. once the beef is cooked, carefully remove it from the pan and use a paper towel to wipe away any excess grease remaining in the skillet.
Add oil and and cook all the vegetables over medium-high heat until they begin to soften, about 5 minutes. Stir in the seasonings. Add back the beef and combine.
Turn off the heat and stir in cream cheese or yogurt. Add the optional mozzarella cheese.
Transfer the mixture to a 9x13 baking dish. Top the casserole evenly with provolone cheese.
Bake for 10-15 minutes until the cheese has melted.
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Notes
Mozzarella cheese is optional but if you are using Greek yogurt instead of cream cheese, I highly recommend adding it.
If you desire a golden brown crust, broil for 30 seconds to a minute.
Let the casserole sit for at least 5 minutes before serving so it's easier to scoop.