Mexican Street Taco Soup

Name: Mexican Street Taco Soup
Ingredients: 2 pounds fresh Mexican chorizo; 2 cups chopped yellow onion (from 1 large onion); 3 poblano chiles, seeded and chopped (about 1 3/4 cups); 1/4 cup chopped fresh oregano; 6 garlic cloves, minced (about 2 1/2 tablespoons); 3 cups unsalted chicken stock; 2 (15-ounce) cans pinto beans, drained and rinsed; 1 (10-ounce) can tomato puree; 1 tablespoon olive oil; 3 cups fresh corn kernels (from 4 ears); 2 ounces Cotija cheese, crumbled (about 1/2 cup); Diced avocado, chopped fresh cilantro, thinly sliced red cabbage, roasted pepitas, for serving