American-style Steak & Mushroom Sandwiches

Method

1. 1

   Prep the ingredients

   Cut the beef sirloin steak into thin strips, slice the cremini mushroom, and thinly slice the onion; set out the cheese, buns, and remaining ingredients.
2. 2

   Brown the vegetables

   Melt half the butter with the olive oil in a large skillet over medium-high heat; add the cremini mushroom and onion, stirring now and then.

   10 min

   Tip: Let the mushrooms sit undisturbed for a minute at a time to encourage browning.

3. 3

   Sear the steak

   Move the vegetables to the skillet edge; add the beef sirloin steak, worcestershire sauce, 1/2 tsp salt, and a few grinds of black pepper, turning the strips as they brown.

   6 min

   Tip: Cook in batches if the skillet is crowded so the steak sears instead of steams.

4. 4

   Toast and melt

   Set the hamburger bun halves cut-side down over medium heat in the skillet; pile steak and vegetables onto the bottoms, cover with provolone cheese, and cover.

   4 min
5. 5

   Taste and serve

   Taste the filling and adjust with up to 1/4 tsp salt and a few grinds of black pepper; close the sandwiches with the bun tops and serve hot.

   2 min