(Optional Pantry Staples: Salt, black pepper, and garlic powder for seasoning the meat.
Step-by-Step Instructions
- Prep and Brown the Beef
Preheat your oven to 400°F (200°C). In a large skillet over medium-high heat, brown the ground beef until it is fully cooked through. Drain the excess grease thoroughly to ensure the casserole isn’t oily. While the meat is still warm, season it generously with salt and pepper. - Create the Creamy Base
In a 9×13 inch glass baking dish, spread the softened cream cheese across the bottom in an even layer. This acts as a rich foundation that will melt into a sauce as the casserole bakes. - Layer the Ingredients
Pour the browned ground beef over the cream cheese layer. Top the meat with your chopped green bell peppers. Finally, cover the entire dish with the shredded cheese. - Bake to Perfection
Place the dish in the oven and bake for 15–20 minutes. You are looking for the peppers to become tender-crisp and the cheese to turn golden brown and bubbly. For an extra-crispy topping, you can turn on the broiler for the last 2 minutes of cooking—just keep a close eye on it!
Pro Tips for the Best Results
The Searing Secret: If you have an extra five minutes, sauté the bell peppers in the beef drippings for 3 minutes before adding them to the casserole. This intensifies the flavor and ensures they are perfectly soft.
Variation Ideas: While the 4-ingredient version is a classic, you can easily customize this. Add sliced mushrooms or yellow onions to the meat mixture to lean further into that authentic cheesesteak profile.
Serving Suggestions: This casserole is incredibly filling on its own, but it pairs beautifully with a crisp side salad or over a bed of cauliflower rice to soak up the creamy sauce.
Storage and Reheating
This dish is a “leftover’s dream.” Store any remaining portions in an airtight container in the refrigerator for up to 4 days.
To reheat, place a portion in the oven at 350°F until the cheese is bubbly again, or microwave on medium power to ensure the beef remains tender. Because of the cream cheese base, it maintains its moisture much better than traditional casseroles.