Flush The Fat Away Vegetable Soup

Name: Flush The Fat Away Vegetable Soup
Cook time: 8 h
Total time: 8 h
Cuisine: American
Ingredients: 1 sweet potato (medium, peeled and cut into 1 inch cubes); 3 carrots (large, peeled and sliced); 1 celery stalk (diced); 1 yellow onion (small, diced); 1 garlic clove (minced); pinch of kosher or sea salt (more or less to taste); 1/2 teaspoon black pepper; 1/8 teaspoon allspice; 1 teaspoon paprika; 1 bay leaf; 30 ounces navy beans (cans, drained and rinsed (optional black beans)); 4 cups vegetable broth (low-sodium); 14 1/2 ounces diced tomatoes (can, no salt added, *this is an optional ingredient); 4 cups baby spinach ( loosely packed (optional 2 zucchini, sliced)); 1 tablespoon plus 1 teaspoon extra-virgin olive oil (optional, for serving (1/2 teaspoon per serving))