In a large pot, brown ground beef and onion over medium-high heat until no pink remains, breaking it up with a spoon. Drain off any excess fat.
Add broth, beans, Rotel tomatoes with juices, tomato sauce, green chiles, broth, corn, green pepper, and taco seasoning. Stir to combine.
Bring to a boil over medium-high heat. Reduce the heat to a simmer and cook uncovered for 15-20 minutes or until slightly thickened and the vegetables are tender.
