Rub both sides of the sirloin steak with the salt and pepper. Dice into 1/2 inch pieces. Set aside.

Cook diced bacon in a heavy skillet over medium heat until it starts to get crispy, stirring occasionally, about 5 to 7 minutes.

Remove bacon from pan without draining the grease, and let bacon drain on a paper towel lined plate. Increase heat to medium high, and saute onions and jalapenos until onions begin to turn translucent, about 5 minutes.

Add in roma tomatoes and cook an additional 2-3 minutes so the tomatoes just barely start to soften up. Scoot all of the vegetables to one side of the pan.

Pour olive oil into the empty side of the pan. Add in sirloin steak and let sear, stirring occasionally. Cook about 3 minutes, until you can't see any pink. Add in cooked bacon and stir together. Serve hot and garnish with freshly chopped cilantro (optional).