• Thinly slice your steak against the grain. See note below.
• Cut the slices into tiny bite-sized pieces (1/2 inch - 1 inch pieces). Sprinkle them with some salt and pepper.
• Dice your bell peppers and onions into small equally sized pieces.
• In a large cast iron skillet or flat-top griddle melt butter over medium heat. Add onions and cook, stirring often for 2 minutes until onions have started to sweat. Reduce heat to low and add in diced bell peppers.
• Continue to cook on low 5-6 minutes or until onions have caramelized and peppers aren't crunchy at all. Remove from skillet and set aside in a medium bowl.
• Add vegetable oil to cast iron skillet or flat tip griddle. Place over high heat. Add meat in 2-3 batches and cook about 2 minutes, stirring constantly until no longer pink. Remove pan from heat.
• Sprinkle salt all over the top of meat with more pepper. Transfer to the bowl with the onions & peppers. And stir gently to combine.
• Preheat oven to broil. Cut your Italian sub rolls in half. Place on a baking sheet with cut sides up.
• Place the opened rolls under the broiler for 1-2 minutes or until just starting to get lightly golden brown. Remove from oven.

Make it Now

• Spoon meat and onion-pepper mixture onto one open half of sandwich. Cut slice of cheese in half and place both pieces over the filling.
• Return to boiler and broil until cheese is melted, being careful to watch the other half of bread that it doesn't get too dark or burn.
• Remove from oven and serve.

Make it a Freezer Meal

• Allow bread, meat and pepper mixture to cool to room temperature. Equally divide meat mixture to half of the subs. Cut slice of cheese in half and place both pieces over the filling. Top with sub top half.
• If you prefer smaller portions feel free to cut your sandwiches each in half.
• Wrap each sandwich first in non-stick aluminum foil. Then wrap it with a layer of heavy-duty foil. Place all sandwiches into gallon sized freezer safe bags, label and freeze.

Reheat from Frozen

• Preheat oven to 350 degrees. Place foil-wrapped sandwiches into center of oven directly on rack. Bake for 17-20 minutes or until cooked all the way through. Remove from oven and serve.

Cook over the campfire

• Add them frozen to the cooler, keeping my other food frozen longer, and then cook over the fire.
• Get your campfire going so that it has a nice 1-2 inch layer of hot & ready white coals. If you are using briquettes, light them and wait about 10 minutes until they are not flaming and starting to turn white.
• For best results use a grate over the coals about 2 inches above them. Place your foil sandwiches on the grate and cook for 5 minutes on one side, then flip over and cook another 5 minutes on the other side.
• If you don't have a grate, place directly on the hot coals and cook, turning the foil sandwiches every 2 minutes for about 8 -10 minutes total or until heated through, being careful not to burn them. Serve.