1. Whisk the eggs along with 1 tablespoon water until they're smooth.
2. Pre-Heat a Teflon Fry pan over a medium low heat.
3. Pour the egg mixture into the pan, and let it sit until the bottom begins to set. Pull the center to the outside, to allow more of the liquid to touch the bottom of the pan.
4. Place the Shrimp, Cheese, and tomatoes over 1/2 of the omelet, and cook until the eggs are almost set.
5. Fold the empty half over the shrimp and let it cook another minute, or so.
6. Slide onto a plate, and add some Lime Sour Cream, and Tomatoes.