beat eggs, butter and beer together.
heat pan to medium, then dump the wet mix in.
when the bottom starts to cook, add tomato & mushrooms, covering only a semicircle.
when the bottom is rather cooked, carefully fold the uncovered flap over the topping.
leave it to cook a bit more, then gently flip the omelette over.
remove when it has cooked as you like it.this dish was a lucky accident. i was damn hungry and the milk was 2 days out of date. luckily, we had 3 sixpacks right next to it. :)