Customizable Vegetable Soup

In a large pot, heat oil over medium-high. Add onion, garlic, carrot, and celery. Season with salt and cook, stirring, until onion is translucent, about 3 minutes.

Stir in oregano or thyme and/or tomato paste or Parmesan rind.

Stir in hard, starchy vegetables and broth. Bring to a boil, then reduce to a simmer and cook 5 minutes.

Stir in quick-cooking vegetables. Return to a boil, then reduce to a simmer and cook 5 minutes more.

Stir in rice and greens. Heat through. Adjust seasoning with salt as desired.

Ladle soup into bowls. Drizzle with oil; sprinkle with Parmesan and herbs. Serve with crostini.