Philly Cheese Steak Casserole takes the familiar beef, peppers, onions, and provolone combination and turns it into an easy baked dinner. Instead of piling everything into a roll, the seasoned beef mixture goes into a baking dish, gets covered with provolone, and is finished with a simple egg-and-cream mixture that helps the casserole hold together.
What I like about this version is that it keeps the cheesesteak-inspired flavor without adding a lot of extra steps. The beef and vegetables cook in one skillet, the provolone melts right over the top, and the finished casserole slices more neatly after a short rest.
Why You’ll Love This Philly Cheese Steak Casserole
- It keeps the classic flavor combination. Beef, peppers, onions, Worcestershire, and provolone give the casserole a familiar cheesesteak-style taste.
- There is very little hands-on work after the skillet step. Once the beef and vegetables are cooked, the oven does the rest.
- It reheats well. The casserole stays hearty and satisfying the next day.
- It is easy to pair with simple sides. A green salad, roasted vegetables, or potatoes are all good choices.
Ingredient Notes
Ground beef: Ground beef makes this casserole easy to prepare and gives you plenty of browned edges and savory flavor. Breaking it into small crumbles helps the finished slices hold together more evenly.
Bell peppers and onion: These soften in the skillet with the beef and bring the flavor most people expect from a cheesesteak-inspired dinner. Cook them until they begin to soften, but they do not need to become completely tender before baking.
Provolone: The slices create an even cheesy layer without needing to shred anything. Provolone also has a mild, slightly tangy flavor that works well with the beef and peppers.
Eggs and heavy cream: These are not here to make the dish taste like breakfast. They act more like a light binder, helping the beef and cheese bake into a casserole that can be cut and served instead of falling apart on the plate.
Worcestershire sauce: A small amount adds depth to the egg-and-cream mixture and ties it back to the savory beef filling.
How This Casserole Comes Together
The beef starts in a hot skillet, then the peppers and onion go in once the meat has begun to brown. Garlic and seasoned salt are added near the end so the garlic stays fragrant instead of scorching. Draining the excess grease at this point is important because it keeps the finished casserole from becoming oily.
After the beef mixture goes into the baking dish, the provolone is layered over the top. The eggs, cream, and Worcestershire are whisked together separately and poured over everything. In the oven, that mixture settles around the beef and helps the casserole set while the provolone melts into the top layer.
Tips for the Best Philly Cheese Steak Casserole
- Drain the browned beef well before it goes into the baking dish.
- Cut the peppers and onion into similar-size pieces so they soften at roughly the same rate.
- Let the casserole rest for a few minutes after baking before slicing.
- If the top needs a little more color, give it a brief broil at the end, watching closely.
- Taste the beef mixture before assembling and adjust the seasoning if needed.
Easy Variations
You can use a mix of green and red bell peppers for a little more sweetness and color. Mushrooms also fit naturally with the beef and provolone, although I would sauté them first so they do not release too much water into the casserole.
If you want a slightly sharper cheese flavor, replace a few slices of provolone with mozzarella or white cheddar. I would still keep provolone as the main cheese so the casserole keeps its cheesesteak-style character.
Storage and Reheating
Store leftover casserole covered in the refrigerator. Individual portions reheat well in the microwave, while the oven is useful when you are warming several servings at once. Covering the dish loosely for most of the reheating time helps keep the beef from drying out.
Frequently Asked Questions
Can I make Philly Cheese Steak Casserole ahead of time?
You can cook the beef and vegetables ahead and refrigerate them. For the best texture, assemble the casserole with the provolone and egg mixture shortly before baking.
Can I use another cheese instead of provolone?
Yes, but provolone gives the most familiar cheesesteak-style flavor. Mozzarella is a mild substitute, while white cheddar gives a sharper result.
Why is my casserole greasy?
The most common reason is excess fat left in the skillet after browning the beef. Drain it well before assembling the casserole.
More Easy Beef Casseroles
If you want more easy baked dinners, try my Easy Stuffed Pepper Casserole, Ground Beef Casserole, or Cheesy Hamburger Potato Casserole. You can also browse all of my easy casserole recipes or check my 15 easy casseroles for dinner roundup for more ideas.
Philly Cheese Steak Casserole
Ingredients
- 1 1/2 lb ground beef
- 2 bell peppers chopped
- 1/2 onion chopped
- 2 tsp garlic minced
- 1 tsp seasoned salt
- 8 slices provolone cheese
- 4 large eggs
- 1/4 cup heavy whipping cream
- 2 tsp Worcestershire sauce
Instructions
- Preheat the oven to 350°F and grease a 9×9-inch baking dish.
- Brown the ground beef in a skillet over medium-high heat. When the beef is partly browned, add the chopped onion and bell peppers and continue cooking until the beef is cooked through and the vegetables begin to soften.
- Stir in the seasoned salt and minced garlic and cook for about 30 seconds. Drain any excess grease.
- Spread the beef and vegetable mixture evenly in the prepared baking dish and arrange the provolone slices over the top.
- Whisk the eggs, heavy whipping cream, and Worcestershire sauce together in a bowl, then pour the mixture evenly over the beef and cheese.
- Bake for 35 to 40 minutes, until the casserole is set and cooked through.
- Let the casserole stand for a few minutes before slicing and serving.
