I encourage you to prepare this original potato omelette, especially if you like pickled mussels.
With one or two cans of mussels we will change both the appearance of the traditional tortilla of potatoes as the taste. The first time you do it, put it alone a tin, with the liquid and everything. If you like it like that, great. If you prefer it to have more flavor, next time you will only have to put two cans instead of one.
Also try this pate. It's delicious.
Spanish omelette with pickled mussels
A different potato omelette that is also delicious.
More information - Simple mussel pate