Spray large skillet with cooking spray and heat over medium heat.
Add the green onions and cook for 1 minute, stirring occasionally.
Add the artichokes, bell peppers, garlic, oregano, basil, and black pepper and cook for 8 minutes.
Remove mixture from skillet, set to aside and cover to keep warm.
In a medium bowl, whisk eggs.
Pour eggs into same skillet and cook until set in the center, carefully pushing cooked eggs to center of skillet with spatula and tilting skillet as necessary to allow uncooked portion to flow underneath.
Spoon the vegetable mixture over half of the omelet and sprinkle with 2 tablespoons of the cheese.