Heat olive oil in a large crock pot.
Add onion and garlic and cook for 1 to 2 minutes until onion is translucent.
Add peppers, parsnip and pumpkin and cook until almost tender, about 7 minutes.
Add vegetable broth, stewed tomatoes with their juice, tomato paste and spices and bring to a boil
Reduce heat and allow to simmer for 20 minutes or until pumpkin is tender.
Serve hot with fresh corn and a garnish of cilantro along with warm tortillas or rice.