Help! Chicken and Wild rice soup needs some extra flavor

I made a creamy chicken and wild rice soup for the first time following a recipe I found online. However, now that it's finished, I think it needs more flavor. The only seasonings I used was a the package of seasoning included in the Uncle Ben's Long Grain and Wild Rice box. What's the best way to add spices to it now that it's finished, and what are some good spices to add to this soup (Ingredients thus far are: Chicken, long grain and wild rice, carrots, celery, onions, chicken broth, heavy cream). Thanks!