Add all ingredients except cream cheese to a slow cooker. Cook on low 6 hours or on high 4 hours. Stir in cream cheese. Once the cream cheese is a little melted/softened, puree the soup using an immersion blender. Top with fresh basil, if desired.
To Freeze
Add all ingredients except cream cheese and basil to a freezer bag. Freeze until ready to use.
To Cook After Freezing
Add frozen meal to slow cooker. Cook on low 8 hours or on high 6 hours. Stir in cream cheese. Once the cream cheese is a little melted/softened, puree the soup using an immersion blender. Top with fresh basil, if desired.