Directions

1. Add 1 tbsp oil to your pan/cooktop and sauté diced onions until caramelized then transfer to a bowl.
2. Increase to high heat and add 1 tbsp oil. Spread the super thinly sliced steak in an even layer. Let brown for a couple of minutes undisturbed then flip and season with 1/2 tsp salt and 1/2 tsp black pepper. Sautee until steak is fully cooked through then stir in the caramelized onions.
3. Divide into 4 even portions and top each with 2 slices of cheese and turn off the heat so the cheese will melt without overcooking the meat.
4. Spread a thin layer of mayo on the toasted side of each Sola Bun. Working with one portion at a time, place a toasted bun over each portion and use a spatula to scrape the cheesy beef into your bun as you flip it over. Serve warm.