Preheat oven to 375F.
Heat a large, oven safe Dutch oven or casserole pot over high heat. Add Italian sausage and the bacon and cook long enough to add colour but not cook through, about 5 minutes. Remove them to drain on paper towels. Drain all grease except two tablespoons. Once sausage cools cut on diagonal into large chunks.
Add onions and Mennonite sausage slices to pot stirring to scrape up and bits on bottom and let cook about three minutes.
Add potatoes, cooled sausage, bacon, half the parsley, salt and pepper.
Pour in beer and bring to a boil. Add chicken broth, reduce heat and cover the pot.
Place covered pot in preheated oven and cook for 2 hours.
Serve hot with fresh crusty bread.