To a pan over medium heat, add the olive oil and onions. Saute for 6 to 8 minutes or until soft and tender, adding a splash of water 3 to 4 times as it cooks to help caramelize them. Make sure to continuously stir around so
it cooks evenly.
Once the onions are 3/4 of the way caramelized, add the bell peppers and minced garlic. Cover to let it steam so the bell peppers soften.
When the peppers are soft and the onions are caramelized, transfer to a plate and in the same pan, add and melt down the butter.
Add the steak to the pan over high heat. Season with paprika, chili powder, onion powder, garlic powder, salt, black pepper, brown sugar, and Worcestershire sauce.
Cook for about 4 to 5 minutes or until seared and fully cooked through.
Take off the heat. Return the peppers and onions to the pan. Toss all together and take off the heat.