Heat oil in cast iron pan over medium heat. When the oil is hot, add bread cubed and brown both sides.
In a medium bowl, beat eggs, then pour them over the bread cubes.
While the eggs begin to cook, slice precooked spicy sausage link, then arrange over top of eggs.
Clean, slice, (and seed) desired amount of jalapeño.
Cover until the top of egg is cooked through.
Lower heat if necessary.
In the last minute of cooking, sprinkle the cilantro and a little cheddar over the top.
Garnish with a dollop of sour cream and top with salsa.
Enjoy!