Here's a recipie for cheap, easy, awfully quick yet tasty omelettes:

Melt a little margarine in a glass bowl (just a normal breakfast cereal bowl would do fine).

Add two eggs, a pinch of salt, and about an eighth of a cup of milk; mix it thoroughly with a fork.

Microwave on high power for two minutes. While it's cooking, the omelette will expand greatly - don't be alarmed, even if it looks like its going to bubble over. Once it stops cooking, it'll shrink and settle pretty fast.

Remove the bowl from the microwave (carefully, it'll be very hot), then upturn the bowl and drop the omelette onto a plate. Great on toast, too.

Cheap, easy, and tasty. All you need is a bowl, a microwave, two eggs, some milk and a little salt.