Set aside the yellow soup base packet and rice
In a slow cooker or crock pot, combine the water, vegetable packet and red seasoning packet
Add the chicken and sausage to the soup mixture
Cover and cook on high for 3 hours
In a small bowl, whisk together the yellow soup base with 1 tablespoon water
Add the yellow soup base and rice to the slow cooker stirring to combine. Cover and cook for 30 minutes
Add the shrimp to the soup, cover and cook for 30 minutes longer.
Serve immediately with 1/2 cup cooked rice, if desired.