This make-ahead, freezer-friendly hearty vegetable soup is both simple and adaptable. Perfect for a fridge full of CSA vegetables!
In a large Dutch oven or soup pot, heat olive oil over medium heat. Add leeks, carrots, celery and garlic. Stir and cook until fragrant and starting to soften; about 8-10 minutes.
Soup should keep in the freezer definitely, but to prevent freezer burn, consume within 2-3 months.