Cut up peppers and onions into small slices/pieces. Shred or slice the steak into small bits.
Cook onions covered on low for 20-30 minutes with 1 Tbsp oil.
Pan fry bell peppers on medium for 5 minutes with 1 Tbsp oil, stirring constantly.
Cook Steak on medium with 2 Tbsp oil, adding the steak seasoning.
Mix all the cooked ingredients and add the cheese and sauce.