In Spanish, omelets are sometimes called "tortilla de huevos" which means "egg tortilla." This one is filled with Mexican style ingredients and makes a delicious low-carb breakfast.
Beat eggs, crema, salt, cumin, and garlic powder together.
Heat oil or lard in a medium round frying pan over medium heat. Pour in the egg mixture and turn heat to the lowest setting. Let the egg cook until almost set. If egg browns, the pan is too hot. Next, flip the omelet over.
Place cheese and salsa on half of the omelet. Fold the top over to help melt the cheese. Cover with a lid or a piece of foil for about 3 minutes to finish melting the cheese. Remove from pan and serve immediately.
Slide out of the pan onto a plate and then place the pan upside down on top of the plate. Turn pan and plate over so omelet falls back into the pan to cook the other side.