Heat a grill to medium high heat and sprinkle salt and pepper on each side of the meat. Cook for 6 to 8 minutes per side, remove from the grill and let rest for 2-3 minutes before slicing thin on the diagonal.
Meanwhile, in a blender combine all of the dressing ingredients and blend until smooth. Set aside.
To assemble: Sprinkle a little cheese on a tortilla and warm in a skillet until the cheese melts. Place the cheese tortilla in a bowl and top with rice, steak, corn, peppers and onions and lettuce. Drizzle with the dressing and enjoy!