In a medium sauté pan over medium heat, brown ground chicken breast, about 5-7 minutes. Add garlic, cook until fragrant, 2-3 minutes. Add tomato paste and cook for another minute.
Place the cooked chicken, bag of Southwest Blend, diced tomatoes, chicken stock, chili powder, cumin, coriander, black beans, some salt and pepper into a 6.5-quart slow cooker. Set it on high for 3 hours. Add zucchini in the slow cooker an hour before chili is finished cooking.