If you're making homemade enchilada sauce, prepare it.
Preheat oven to 350 degrees.
Add oil to a big skillet and heat over medium high heat. Add ground beef and crumble (use a potato masher to make it easier). Once ground beef is about halfway cooked, add onion, garlic, and green chiles and saute for 3-6 minutes, stirring occasionally.
To make the enchiladas, spread a couple of tablespoons of the enchilada sauce over the tortilla. Add beans in a line down the middle of the tortilla, then add in a spoonful of the beef mixture, drizzle some extra enchilada sauce over the meat, then add ⅓ cup cheese. Roll up tortilla and place in a greased 9 x 13" baking pan.
Continue with remaining tortillas.
Spread the remaining enchilada sauce over the top of the tortillas, and sprinkle with the remaining shredded cheese.
Bake uncovered for 20 minutes, broiling the last few minutes if you want the cheese to be a more golden brown.
Garnish with chopped cilantro and green onions.