01 -
Slice the top sirloin steak into thick pieces and season generously with salt and pepper.
02 -
Heat olive oil in a pan over high heat until smoking. Add the steak slices and sear until the bottoms are browned, about 3-4 minutes. Flip the steak, reduce the heat to medium, and cook for another 3-4 minutes until the steak is cooked through. Transfer the steak to a bowl and allow it to cool.
03 -
In the same pan, add diced onions, a pinch of salt, and butter. Cook over medium heat for 5-7 minutes, stirring and scraping up the browned bits until the onions soften.
04 -
Dice the red and green bell peppers, pepperoncini, pickled red peppers, and jalapenos. Add them to the onions and cook for about 5 minutes until they start to soften.
05 -
Preheat the oven to 400°F (200°C).
06 -
Chop the cooled steak into small pieces and place them back into the bowl with the accumulated meat juices. Add the onion-pepper mixture and softened cream cheese. Grate in the provolone cheese, saving a little for the top. Add Worcestershire sauce and cayenne pepper, and mix the dip thoroughly.
07 -
Transfer half of the dip into a small baking dish, smoothing the top with a fork. Place the baking dish on a sheet pan. Sprinkle the remaining provolone cheese on top.
08 -
Bake in the preheated oven for 20-25 minutes, or until the dip is bubbling and heated through. Broil for about 1 minute until the top is browned. Repeat with the second batch of dip if needed.