1. Meanwhile, in a separate skillet on medium-high heat place the sausage slices in one layer in the pan.
2. Brown them well on one side (2-3 minutes) and then flip each over onto the other side to brown. Remove to a plate.
3. Add ½ cup of the chicken broth to the hot skillet that had the sausage to deglaze the pan.
4. Pour the broth and drippings from the sausage pan into a large soup pot.
5. Add remaining 5 ½ cups of chicken broth.
6. Add veggies, parsley, and roux to the pot and stir well.
7. Boil over medium heat for 5-7 minutes, or until the vegetables are slightly tender. (Skim off any foam that may rise to the top of the pot.)
8. Stir in cajun seasoning.
9. Add the cooked chicken, sausage, and shrimp and cook for 5 more minutes.
10. Add more seasonings like salt, pepper, chicken bouillon paste, garlic, more chicken broth until you reach the perfect flavor.
Serve warm over rice.