It's amazing how 2 eggs and a little milk can conspire to make something so hearty and indulgent! This is a standard cheese omelette, but dress it up with whatever ingredients you have on hand.
Add the eggs, milk and salt to a blender and secure the lid firmly in place. Turn the blender onto it's highest setting and blend for 3 minutes.
While the eggs are blending, heat the pan over low heat for about 45 seconds. Spray the vegetable spray over the bottom and sides of the pan and add the butter. Pour the egg mixture into the center of the pan and let it sit for 15-20 seconds over the low heat without moving the pan.
Turn up the heat to medium and swirl the pan gently to coat the pan and cook the eggs to about 85% done. Use a flexible spatula to loosen the edges of the egg from the pan and carefully flip the omelette. Cook the omelette for an additional 10-20 seconds until the eggs are cooked through.
Top the omelette with grated cheese and a sprinkle of parsley (if using) fold one side over the other. Transfer the omelette to a plate and sprinkle with extra parsley to serve.