Fill a large 8-quart pot with water. Bring to a boil. Then put in the great northern beans and split pea soup mix. Cover and cook for one hour.

In a food processer grate parsnip, carrots, celery, and kohlrabi. Peel and cube zucchini. After the beans have cooked for an hour, add in the grated veggies and cubed zucchini. Add in whole onion. Add garlic, salt, and pepper.

Cook on low for two hours. Remember to remove the onion before serving.