Heat the pan in low heat (preferably non stick pan) add oil

Beat the eggs with a whisk or hand mixer until they almost double in size.Cut your Onion's, tomato's and the smokies in your desired shape but in small size. Then pour your eggs in the hot pan,put your Onion's smokies and tomatoes on top of the eggs and cover with a lid. Cook in low heat for about 6-10mins.