Healthy Tuscan Vegetable Soup

INGREDIENTS

1 15.5 ounce can

cannellini beans, drained and rinsed

1 tbsp

olive oil

1/2

large onion, diced (about ½ cup)

medium carrot, diced (about ½ cup)

stalks celery, diced (about ½ cup)

small zucchini, diced

1 clove

garlic, minced

1 tbsp

chopped fresh thyme (or 1 tsp. dried)

tsps. chopped fresh sage( or ½ tsp. dried)

1/2 tsp

salt, plus more for taste

1/4 tsp

ground black pepper, plus more to taste

4 cups

low-sodium chicken or vegetable broth

1 14.5 ounce can

diced tomatoes, with juices

2 cups

lightly packed chopped spinach

1/3 cup

freshly grated parmesan cheese (optional)