Place the ground beef in a skillet. Cook on medium heat, breaking up the beef with a wooden spoon until small bite-size pieces are browned. Then add in the taco seasoning and water. Mix well, and remove from the heat.
Carefully, open the warm potatoes using the tines of a fork. Then add in the salted butter, sour cream, ground beef, shredded cheese, diced tomatoes, and green onions. Place half an avocado on the side of each potato. Repeat until all potatoes are topped. Enjoy immediately.