Prep Beef: In a large skillet, brown the ground beef with salt and a sprinkle of garlic powder. Drain the excess oil and set the beef aside.
Cook Noodles: In the same skillet (or a large pan), add the 3 ramen noodle blocks and the 1 ½ cups of water. Bring to a boil, then simmer until the noodles are tender and the water has fully evaporated.
Combine: Add the cooked beef, taco sauce, taco seasoning packet, and sliced scallions to the noodles. Mix thoroughly until everything is evenly coated.
Assemble: Transfer the mixture into a prepared (greased) baking dish.
Bake: Top with the shredded cheddar cheese. Bake at 375°F (190°C) for approximately 15 minutes, or until the cheese is bubbly and completely melted.