Add chicken broth, water, and Italian seasoning to a dutch oven or large, deep skillet. Bring to a low boil over medium-high heat. Stir in chicken, olives, artichoke hearts, tomatoes. Return to a boil.
Stir in pasta, and continue cooking at a low boil, stirring occasionally, for the recommended cooking time on the pasta package.
Stir in hummus and mozzarella, and reduce heat to medium. Cook, stirring often, until cheese is melted. Sprinkle crumbled feta over the entire dish or on individual servings to taste.