Authentic Chile con Queso

2 tablespoons vegetable oil

½ onion, diced

1 tomato, diced

10 large roasted green chile peppers, seeded and chopped

½ cup shredded queso asadero (white Mexican cheese)

¼ cup shredded Monterey Jack cheese

¼ cup milk

salt to taste

Heat the vegetable oil in a skillet over medium heat. Stir in the onion and tomato; cook and stir until the onion has softened and turned translucent, about 5 minutes. Add the green chile; cook for 2 minutes then stir in the cheese and milk. Reduce heat to low and simmer, stirring frequently, until the cheese has melted.