For serving: cilantroavocado, shredded cheese, tortilla chips, and sour cream or plain Greek yogurt
Heat the olive oil in a large skillet or Dutch oven over medium high. Add the turkey, onion, salt, garlic powder, and black pepper. Cook and stir, breaking up the turkey as you go, until the turkey is no longer pink, about 5 minutes. Stir in the chili powder, chipotle chili powder, and cumin, then transfer to the bottom a large slow cooker.
To the slow cooker, add the chopped sweet potatoes, quinoa, beer, 2 cups chicken stock, crushed tomatoes, and black beans. Cover and cook on high for 3-4 hours or low for 5-6 hours, until the potatoes are tender. Stir in additional chicken stock if the chili is thicker than you would like (I added about 1/2 cup extra). Serve warm with desired toppings.
Leftover slow cooker turkey quinoa chili can be stored in the refrigerator for up to 5 days or frozen for up to three months.
If you are doubling this recipe it WILL NOT FIT in a 6-quart slow cooker. Borrow a second one, place part in a smaller crock pot, or upgrade to a larger size. You've been warned.