Cook rice according to package instructions.
Season flank steak with taco seasoning. Add butter to cast iron skillet and set to high. Add steak to skillet and cook for at least 2 minutes on each side or until cooked. Once cooked, cut steak into bite-sized pieces.
Cook corn according to package instructions.
To prepare the pico, chop up the red onion, tomatoes, cilantro and jalapeño and add to a bowl. Squeeze the lime on top and add some salt and pepper.
Get a spearate bowl and add the rice, steak, corn, pico, sour cream and cheese. Enjoy!