Heat olive oil in a large dutch oven over medium heat. Add onion and leaks and and saute for 5 minutes. Add garlic and thyme and saute for another minute.
Add remaining ingredients except for spinach and S&P. Bring to a boil and reduce to simmer, continue to simmer with lid on until vegetables are cooked through - approximately 10 minutes.
Turn off heat and remove bay leaves and add chopped spinach. Season woth S&P to taste.
Top with fresh chopped parsley or grated romano cheese.
Recipe by Good Thyme Kitchen at https://www.goodthymekitchen.com/winter-vegetable-soup/