Preheat oven to 400 degrees.

In a medium skillet over medium heat add the diced onions and saute for approximately 2- 3 minutes.

Add the meat and cook thoroughly.

Meanwhile, slice peppers in half, removing the stems and the seeds.

Place them (hollow side up), on a greased baking sheet.

Add the Taco Seasoning, tomato sauce, drained black beans and diced green chiles to the meat and cook for 2-3 minutes or until mixture thickens.

Scoop the taco meat inside each of the bell pepper halves.

Bake at 400 for 10-15 minutes.

Remove from oven, top each with cheese.

Place back in the oven for 2- 3 minutes until cheese is melted.