Sauté chopped onion in Olive oil for about 5 minutes until translucent.
Add in beans (drained), tomatoes, salsa and chili powder. Bring to a boil.
Once boiling, reduce heat to simmer and add corn. Simmer for 5 minutes.
Turn to low and add in chopped cilantro. Cook for 3 more minutes.
Serve with avocados, cheese or sour cream if you like!