
Ingredients
For the Bread Base:
- 1 large Italian or French bread loaf (about 16 inches long)
- 1/2 cup (115g) unsalted butter, melted
- 3 cloves garlic, minced
- 1 tsp dried oregano
- 1/2 tsp salt
- 1/4 tsp black pepper
For the Philly Cheesesteak Filling:
- 1 lb thinly sliced ribeye steak or deli roast beef
- 2 tbsp vegetable oil
- 1 large onion, thinly sliced
- 1 large green bell pepper, thinly sliced
- 1 large red bell pepper, thinly sliced (optional)
- 8 oz mushrooms, sliced (optional)
- 3 cloves garlic, minced
- 1 tsp Worcestershire sauce
- Salt and pepper to taste
For the Cheese:
- 8 oz provolone cheese, sliced
- 8 oz American cheese, sliced
- 1 cup (100g) shredded mozzarella cheese
- 1/2 cup (50g) shredded sharp cheddar cheese
Optional Garnish:
- Fresh parsley, chopped
- Red pepper flakes
- Pickled jalapeños
Instructions

Prepare the Bread:
- Preheat oven to 375°F (190°C).
- Using a sharp serrated knife, cut diagonal slices into the bread every 1-2 inches, cutting about 3/4 of the way through (don’t cut all the way through).
- Turn bread 90 degrees and make perpendicular cuts to create a crosshatch pattern.
- Mix melted butter with minced garlic, oregano, salt, and pepper.
- Brush garlic butter mixture all over the bread, making sure to get between the cuts.
Cook the Steak and Vegetables:
- Heat 1 tablespoon oil in a large skillet over medium-high heat.
- Add sliced onions and cook for 5-7 minutes until softened and lightly caramelized.
- Add bell peppers and mushrooms (if using), cook for 5 minutes until tender.
- Add minced garlic and cook for 1 minute until fragrant.
- Remove vegetables from pan and set aside.
- Add remaining oil to the same pan and increase heat to high.
- Add thinly sliced steak and cook for 2-3 minutes, breaking it up with a spatula.
- Add Worcestershire sauce and season with salt and pepper.
- Return vegetables to pan and mix with steak. Remove from heat.
Assemble the Cheesy Bread:
- Place bread on a large sheet of aluminum foil.
- Carefully stuff the crosshatch cuts with the steak and vegetable mixture.
- Layer the provolone and American cheese slices between the cuts and over the filling.
- Sprinkle shredded mozzarella and cheddar cheese over the entire loaf.
- Wrap the bread loosely in foil, leaving the top partially open.
Bake:
- Place on a baking sheet and bake for 15 minutes.
- Remove foil and bake for an additional 10-15 minutes until cheese is melted and bubbly.
- For extra browning, broil for 2-3 minutes at the end.
Serve:
- Let cool for 5 minutes before serving.
- Garnish with fresh parsley and red pepper flakes if desired.
- Serve immediately while cheese is still melty.
Cooking Tips
Steak Preparation:
- Thin Slicing: Ask your butcher to slice ribeye paper-thin, or freeze for 30 minutes before slicing yourself
- Alternative Cuts: Sirloin, flank steak, or even deli roast beef work well
- High Heat: Cook steak quickly over high heat to prevent overcooking
Bread Selection:
- Crusty Exterior: Choose bread with a firm crust that won’t get soggy
- Soft Interior: The inside should be soft enough to cut easily
- Size Matters: A 16-inch loaf serves 6-8 people as an appetizer
Cheese Combinations:
- Traditional: Provolone and American cheese are classic
- Melting Quality: Mix hard and soft cheeses for best texture
- Flavor Balance: Sharp cheddar adds tang, mozzarella adds stretch
Variations
Chicken Philly Version:
- Substitute 1 lb sliced chicken breast for steak
- Season with Italian seasoning and garlic powder
- Cook until internal temperature reaches 165°F
Vegetarian Option:
- Replace steak with 2 cups sliced portobello mushrooms
- Add extra bell peppers and onions
- Include sliced zucchini or eggplant
Spicy Kick:
- Add 1-2 diced jalapeños with the vegetables
- Use pepper jack cheese instead of American
- Sprinkle with hot sauce before serving
Loaded Version:
- Add crispy bacon bits
- Include caramelized onions
- Top with sour cream and chives after baking
Make-Ahead Instructions
Prep Components:
- Cook steak and vegetables up to 2 days ahead, store refrigerated
- Prepare garlic butter mixture and store covered
- Slice bread and wrap in plastic wrap to prevent drying
Assembly:
- Assemble entire bread up to 4 hours ahead
- Cover with foil and refrigerate
- Add 5-10 minutes to baking time if starting from cold
Serving Suggestions
- Appetizer: Cut into individual portions for sharing
- Main Dish: Serve with a side salad or coleslaw
- Game Day: Perfect for parties and gatherings
- Dipping Sauce: Serve with marinara sauce or cheese sauce
Storage
- Leftovers: Wrap in foil and refrigerate for up to 3 days
- Reheating: Warm in 350°F oven for 10-15 minutes until heated through
- Freezing: Not recommended as bread texture will suffer
Nutritional Notes
- High Protein: Plenty of steak and cheese provide substantial protein
- Customizable: Reduce cheese or add more vegetables to lighten
- Portion Control: Rich dish, so smaller portions are satisfying
Prep Time: 30 minutes
Cook Time: 30 minutes
Total Time: 1 hour
Serves: 6-8 people
Difficulty: Easy to Moderate