Low Calorie Spicy Cabbage Soup

. olive oil

. yellow onion (, chopped)

of a green bell pepper

. carrot (, chopped)

. celery (, chopped)

garlic cloves (, minced)

. red pepper flakes

. dried oregano

. dried basil

bay leaf

head green cabbage ((~3-4 cups), shredded)

. tomato puree ((see Notes))

. water ((or broth of choice))

. fresh parsley (, chopped)

lemon wedges (, for serving, optional)

salt and pepper (, to taste)