In a large skillet, add oil and bring to medium heat. Once hot, add the onions and sauté for 4 minutes, stirring often. Once the onions are translucent add the bell peppers and cook until tender, about 5 minutes.
While the vegetables are cooking, add your chorizo to a skillet and cook until desired consistency. Keep warm once chorizo is cooked
In a medium bowl, add eggs, milk, salt, pepper and diced chilies. Whisk together.
Add the eggs to the vegetable mixture and scramble, about 5-6 minutes. Add 1/2 the cilantro and 1/2 the cheese once the eggs are almost done Finish scrambling the eggs. Add the chorizo. Mix well. Set heat to low and heat up tortillas.
Once your tortillas are warmed, sprinkle the remaining cilantro and cheese over the chorizo eggs.
To assemble the tacos: take a warmed tortilla, add beans then the chorizo egg scramble, then garnish.
Serve immediately and enjoy!