Heat oil in stockpot over medium heat. Add onion, cook and stir until they begin to soften, about 3 minutes.
Add the seasoning, then stir and cook for 1 minute.
Add the beans, broth, tomatoes and corn; stir well to combine.
Bring to a boil, then reduce heat and simmer for 10 minutes.
Serve with optional toppings, if desired.