1tablespoonunsalted butter(optional for mushrooms)
8ouncessliced cremini mushrooms(optional)
1poundshaved or thin sliced ribeye steak
salt and pepper
8thin slices provolone cheese(about 1/4 lb from the deli counter)
46-inch sub rollssplit partially lengthwise
mayonnaise(optional)
Instructions
Warm 1 tablespoon of oil in a large nonstick skillet, flat top griddle or cast iron skillet over medium-high heat until shimmering. Add the chopped onions and cook until translucent and golden brown on the edges. Transfer to a small bowl and keep warm.
IF ADDING MUSHROOMS: Melt 1 tablespoon butter in the skillet. Add the mushrooms and stir to coat. Spread the mushrooms in a single layer and cook until the moisture is released and then evaporates. Stir and continue cooking until browned on both sides. Remove to a small bowl and keep warm.
Add the remaining oil to the now-empty skillet. Increase the heat to high and warm until the oil is lightly smoking. Add the steak to the skillet. Generously season with salt and pepper. Use a spatula and a fork to break the shaved steak apart. Stir, cook and chop the steak until no longer pink.
Remove the pan from the heat. Separate the steak into two piles in the skillet. Layer 4 slices of the cheese over half the steak. Top the cheese covered steak with the remaining beef. Finally add the last of the cheese on top. Cover the pan with the lid and set aside for a minute or two or until the cheese melts.
While the cheese is melting prepare the sub rolls. Spread mayonnaise (if using) over the rolls. Divide the onions and mushrooms between the split rolls. Divide the steak and cheese evenly between the 4 rolls. Wrap each sandwich in aluminum foil. Set aside for a few minutes or until the rolls are soft and warmed through. This also allows time for the flavors to meld making for a better sandwich. Enjoy!
Notes
Store leftovers in the refrigerator. Remove the steak from the sandwich and heat in the microwave on 50% powder or until warmed through. Scoop the steak back onto the sub roll and continue microwaving the whole sandwich for another 30 seconds to 1 minute or until heated through.
If omitting the mushrooms you can divide the onions and steak between three sandwiches instead of four.
Look for shaved steak in the meat department of your grocery store. Check the full blog post for loads of tips, optional add-ins and variations
Nutritional information is calculated using an ingredient database and should be considered as an estimate. When multiple ingredient alternatives are given, the first listed is calculated for nutrition. Garnishes and optional ingredients are not included.