Add the whole potatoes to a pot of water that cover them and bring to a boil. Add the salt.
When the potatoes are tender remove from the heat and when they have cooled a little peel them, add them to a bowl and mash them with a hand masher.
Heat the 2 tablespoons oil and add the onions. Sauté the onions until translucent. Add the chorizo and cook until lightly browned and cooked through.
Remove from the heat and add the chorizo to the potatoes and combine. Add a little salt.
Heat 12 tortillas on a hot griddle. Divide the chorizo and potato mixture into 12 portions. Add each portion to one edge of the tortilla and roll up.
Heat about an inch of oil in a skillet. Add the taquitos, not crowding, and brown on all sides, turning as they brown. Remove to a paper towel to drain. Continue until all have been fried. You can keep those you have fried in a warm oven while you fry the others.
To serve, carefully pull one side of the taquito up and add some salsa, then add the shredded lettuce, tomato, and the Quesco Fresco. Enjoy!