Preheat your oven to 400F/200C and thinly slice your steak against the grain. Season with ½ tsp each of salt and pepper and mix. Slice the onion, peppers, and jalapeno and set aside.
Add 1 tbsp olive oil to your skillet and place it over medium heat. Once hot, add the sliced onions and cook for 1 minute, then add the peppers and jalapeno and cook for another 2 minutes. Season with paprika, cumin, oregano, ½ tsp salt, and ½ tsp black pepper, then transfer to a plate.
Return the skillet to the stove and adjust the heat to medium-high. Add 2 tbsp of olive oil, and add the steak slices once the skillet is scorching hot. Spread the pieces into a single layer and cook untouched for 1-2 minutes until the bottom is golden. Flip the meat and cook for another 1 minute, then take the skillet off the heat.
Transfer the steak to a bowl along with any juices and add the cream cheese and ½ cup of grated cheese. Mix well, then transfer back to the skillet and spread it into one layer. Top with the seasoned cooked vegetables and spread them on top.
Sprinkle the remaining grated cheese on top. Transfer to the oven and bake for 10 minutes or until the cheese is golden and bubbly. Broil for 1-2 minutes until the cheese is golden.
Remove the skillet from the oven and rest for a few minutes before serving. Garnish it with sliced avocado, coriander leaves, and sliced jalapenos. Serve immediately.