Heat oil in a skillet over medium heat. Add onions, and cook stirring often for about 4 minutes, until they have softened but not browned. Stir in the chiles, cook for another minute. Incorporate the chopped tomatoes and let the mix cook and season, stirring often, for about 5 minutes (I let them cook about 4 to 5 minutes more until tomatoes are thoroughly cooked, mushy and their red color has deepened).

Meanwhile, crack the eggs in a bowl, add some salt, and beat them with a whisk or fork. Lower the heat to medium-low and pour eggs over the tomato mix. Stir as the eggs cook until desired donenness, but don't let them dry up. Serve with a side of refried beans, hot tortillas or a piece of toast.