Heat a large pot with a tablespoon of oil. Add diced onions and cook, stirring often, until translucent and soft; about 3-4 minutes. Stir in garlic and cook 1 minute. Stir in taco seasoning and salt and cook an additional minute.
Stir in chicken, corn and black beans, then pour in chicken broth and salsa. Stir and bring to a boil. Reduce heat to low, cover and simmer for 20 minutes. Taste and add salt as desired.
Place a small handful of corn tortillas or tortilla chips into the bottoms of the bowls. Pour ladlefuls of soup over the chips in the bowls and top with desired garnishes, like cilantro, sour cream, cheese, avocado, and of course lots of tortilla chips!
*Nutritional count does not include optional garnishes.