Bring a pot of water to a boil and cook the pasta according to package instructions. Drain the pasta in a strainer and then rinse it with cold water.

Heat a skillet over medium heat. Cook ground beef thoroughly, breaking it up. Once cooked, remove any excess grease from the pan, then add the taco seasoning and water. Stir and let simmer for a few minutes, then let cool down completely.

Chop the tomatoes, green onions, iceberg lettuce, and avocado. Add the cooled pasta, cooled ground beef, chopped vegetables, corn, black beans, Doritos, and French dressing to a large bowl. Mix well and serve immediately, or refrigerate until ready to serve.