Heat the olive oil over medium high heat in a medium saucepan. When shimmering add the onion and garlic. Cook about 3 minutes.
Add the turkey, ancho powder, cumin, and chipotle powder. With a wooden spoon, break up the turkey as it cooks, until it's lightly browned, about 5 minutes.
Stir in the flour and then the tomato paste.
Add the stock and the hominy. Turn the heat to medium and simmer for about 15 minutes. Taste and add salt and pepper if needed.
Serve the soup in bowls and provide cheddar cheese, cilantro, sour cream and tortilla chips for garnishing.