1 medium sweet potato, peeled and cut into 1" cubes
3 carrots, peeled and sliced
1 stalk celery, diced
1 small yellow onion, diced
1 clove garlic, 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
2 (15 ounce) cans navy beans, drained and rinsed (optional, black beans)
4 cups vegetable broth, low-sodium
1 (14.5 oz.) can diced tomatoes (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)