In a medium saucepan, brown 1/2# ground beef OR 1 cup, cubed chicken. Add 3 3/4 cups water and bring to a boil. While stirring, slowly add entire amount of soup mix. Reduce heat and simmer, uncovered for approx. 1 hour. Sprinkle soup bowls with crushed tortilla or corn chips before serving, if desired. Not recommended for crockpot; stove-top only.