Grab a large soup pot. Put it over medium heat on the stove and add one tablespoon of olive oil. Add the ground beef and season with salt and pepper to taste. Cook for 4-5 minutes.
Now add in the onions, bell pepper, and diced green chilis. Mix to combine and cook until the beef is almost cooked through. About 3-4 more minutes.
Add in the taco seasoning. Mix to combine and cook another 2-3 minutes. Now add in canned veggies: beans, corn, and rotel. Mix to combine.
Add in the chicken broth and bring the soup to a boil. Once the soup is boiling add in the pasta shells and boil for 10 minutes until the pasta is cooked.
Add the soup to serving bowls and top with cheese. Enjoy!