Add oil to a large non-stick skillet.

Sauté onions and 2 tablespoons of Teriyaki Sauce until the onions are soft.

Add the sliced meat and cook it until the meat turns browns slightly, add remaining 1 tablespoon of Teriyaki Sauce and stir it to combine.

Place cheese on the meat and stir it until it melted, mixing the meat, onions and cheese together.

Scoop the meat mixture onto Sandwich Rolls.

All done!