Saute artichoke hearts, mushrooms and green onion in a nonstick skillet until warmed through. Set aside.
Spray a nonstick skillet with cooking spray and heat over medium heat. Pour in egg substitute and let cook until firm around the edges.
With a rubber spatula, lift the eggs gently and tilt the pan to let uncooked egg run under the firm area. Continue cooking until almost set and flip the omelette over.
Place cheese on omelette and add the warmed filling. Fold over and enjoy!
