Instructions

1. 1

   Preheat oven to 375°F (190°C). Lightly grease a 9x13 inch baking dish.

2. 2

   Heat 1 tablespoon olive oil in large skillet over medium-high heat. Add steak, season with half of garlic powder, salt, and pepper. Cook 3-5 minutes until browned. Remove and set aside.

3. 3

   Add remaining olive oil to skillet. Add onions and bell peppers. Cook 8-10 minutes until softened and slightly caramelized.

4. 4

   Return steak to skillet with vegetables. Add remaining garlic powder, beef broth, and Worcestershire sauce. Simmer 2-3 minutes until flavors meld and liquid reduces slightly.

5. 5

   Brush one side of each bread slice with melted butter.

6. 6

   Arrange 6 buttered bread slices (butter-side up) in single layer in baking dish.

7. 7

   Top with half of provolone slices, half of beef mixture, and half of shredded mozzarella and cheddar.

8. 8

   Place remaining 6 buttered bread slices on top (butter-side up).

9. 9

   Add remaining provolone, beef mixture, and shredded cheeses. Sprinkle with Parmesan.

10. 10

    Bake 25-30 minutes until bubbling, cheese is melted and golden brown, and bread is toasted.

11. 11

    Remove from oven and let rest 5-10 minutes before slicing and serving.