Experience the ultimate steak sandwich with tender slices of perfectly cooked steak, caramelized onions, melted cheese, and peppery arugula, all tucked in a crispy baguette. This sandwich is a carnivore's delight that packs a flavorful punch in every bite.
Season the steak with salt and pepper on both sides.
Heat olive oil in a skillet over medium-high heat. Add the steak and cook for 3-4 minutes per side, or until it reaches your desired level of doneness. Remove the steak from the skillet and let it rest.
In the same skillet, add the sliced onions. Cook over medium heat until caramelized, about 10 minutes.
Slice the cooked steak thinly against the grain.
Place cheese slices on the bottom half of the baguette, and top with sliced steak, caramelized onions, and arugula. Cover with the top half of the baguette.
Slice the sandwich into portions and serve immediately.