I either fry the bottom using fry light and finish off the top using the grill if I have the time and want to present it nicely,
if im in a rush I end up doing this inbetween thing where I just push the egg round the pan until its all cooked, I dont do enough pushing for it to be scrambled but its kind of like a broken up, not so fluffed up omlette I guess?? Its nice and so fillin so who cares what it looks like!
I use HEA grated reduced fat cheese, or light laughing cow triangles. Salt, Pepper (obviously) and then pretty much anything I can find in the fridge? Normally I like to use peppers, onions, bacon/ham, mushrooms, potato to make a frittata...and i normally slice some big tomatos and then put these ontop of the omlette once I've put it under the grill.
However I've been known to put some odd things in omlettes, such as pork steak (this was one of the best omlettes ive ever had by the way!!!), chicken, broccoli, sweetcorn, corgettes and even asparagus!! I really think you can throw in just anything and everything thats avaliable! x