Pour in chicken broth and water. Add split peas, ham, and thyme. Stir gently and break apart any clumps in the split peas. Season with pepper to taste.
Bring the soup to a boil, then reduce to low. Cover the pot, and let simmer for 1 to 2 hours, stirring occasionally.
Taste soup for seasoning. If desired, add salt to taste. Serve hot.
Keyword dinner, ham, lentil, lunch, nutritious, one-pot, quick, Soups, split-pea