Rub both sides of steak with lime juice and then sprinkle with the seasoning mix over the meat generously on both sides and rub in well. Be sure to reserve about 1 tablespoon of the seasoning to sue later.
Place in a plastic sack and refrigerate for at least 6 hours or overnight. Remove from the refrigerator 40 minutes before grilling.
Cut peppers, jalapenos, and onion in half. Place on a clean and oiled grill and cook until charred and tender, flipping and rotating as needed. Close the lid while grilling. Set aside in a warm place.
Place steak on an oiled grill over medium-high heat and close the lid and cook about 2 to 3 minutes per side. Remove from grill and let rest a few minutes before slicing. Slice thinly at an angle against the grain.
Slice the veggies and place in large cast iron skillet. Stir in the sliced meat. Add the water. Season with the remaining seasoning mix, to taste. Simmer for about 45 minutes, stirring occasionally.
If using a crockpot, add about 1/2 cup of water and cook on low for about 45 minutes to 1 hour.
Serve with tortillas, cheese, sour cream, etc.
