1. Add all ingredients to a slow cooker except zucchini and spinach. Mix well.
2. Cover and cook on high for 3 – 4 hours or on low for 7 – 8 hours, until veggies have softened.
3. Once soup is almost done cooking, use a spiral vegetable slicer to cut zucchini into spaghetti-like noodles. (If you don’t have a spiral veggie slicer, peel zucchini into super-thin strips, rotating the zucchini after each strip.) Roughly chop for shorter noodles.
4. If cooking at high heat, decrease heat to low. Remove and discard bay leaves. Stir in zucchini noodles and spinach. Re-cover, and cook for 10 minutes, or until zucchini noodles have slightly softened and spinach has wilted.

Nutrition Information: