1 to 2 pounds shaved beef steak
2 teaspoons olive oil or avocado oil
4 tablespoons butter
1 large yellow onion, sliced thin
1/2 cup Worcestershire sauce
1 teaspoon seasoning salt
6 to 8 slices provolone or American cheese
6 French rolls or hoagie rolls
1 package sliced mushrooms (optional)
1 medium bell pepper, any color (optional)
1 to 2 tablespoons hot sauce (optional)
Instructions
1. Melt butter in a large skillet over medium heat, add sliced onions, mushrooms, and bell peppers, and sauté 10 to 15 minutes until soft and caramelized; remove vegetables and set aside.
2. Increase skillet heat to high and add olive oil.
3. Add the shaved steak to the hot skillet in quick batches, season with seasoning salt, and cook rapidly for 2 to 3 minutes until browned.
4. Reduce heat to low and return the cooked vegetables to the pan with the meat.
5. Pour in the Worcestershire sauce and hot sauce, tossing until combined.
6. Separate the meat and onion mixture into portion piles in the skillet, place cheese slices over each pile, and cover the pan for 1 minute to melt the cheese.
7. Scoop each cheesy portion into a toasted roll and serve immediately.
