Place bacon in a cold pan, and cook until almost crisp. All the fat should be rendered. Remove bacon from pan, and drain. Place potato chunks in the pan, and cook, turning occasionally, until well browned and crisp. Cut bacon into 1 inch pieces, and add to potatoes. Immediately pour eggs over the potato/bacon mixture, and cook, stirring frequently, until soft-scrambled. Spoon mixture into heated flour tortillas, and roll or fold. Serve with pico de gallo, hot sauce, chopped cilantro, jalapeno peppers to be added as desired. In actuality, the filling can be darn near anything you have handy (eggs optional). Leftover fajitas are great, as is Mexican-style chorizo (which makes the greasiest breakfast tacos known to man, if you don't drain the cooked chorizo mixture VERY well before adding the eggs). Cheese may be added to the mixture, or sprinkled on the cooked ingredients before rolling. Kathy in Bryan, TX