Heat a large heavy pot or Dutch oven over medium heat and add olive oil.
Add garlic and saute until fragrant, about 30 seconds.
Add the ground turkey and cook, breaking it up until white and cooked through, about 5 minutes.
Add diced green chilies, salt, cumin, oregano, and chili powder and cook for 2 minutes.
Puree 1 can of beans in the blender with 1 cup of the broth. Add to the pot with the remaining beans, broth and bay leaf and bring to a boil.
Cover and reduce to a simmer, about 30 to 35 minutes mixing occasionally, until thickened and the flavors meld.
Stir in sour cream and cook and additional 4 to 5 minutes. Taste and add more salt or seasonings if desired.
Serve hot, topped with your favorite toppings!