Brown the turkey in two batches. Brown in a large saucepan until mostly cooked. Drain, sprinkle one teaspoon, cumin, and chili powder, and cook for an additional 2 minutes. Add to slow cooker and cook second batch with the same directions.
Cook onions in the same pan after the turkey is done for 4-6 minutes. Add jalapeno and garlic and cook for an additional 1 minute. Add bell peppers and cook for 2 minutes. Remove from heat and add to slow cooker.
Add tomato paste, broth, petite diced tomatoes, cayenne pepper, zucchini, and sweet potato and remaining teaspoon of cumin, salt, and chili powder to the slow cooker.
Stir ingredients. Cook on high for 3-4 hours, or low for 4-6 hours.