Brown ground beef in a large skillet over medium heat.
When beef has finished cooking, add in the taco seasoning and water. Give it a stir.
Next, add the uncooked rotini noodles, petite diced tomatoes, and salsa. Stir everything together and cover. Let it simmer over medium heat for 20 minutes. Stir occasionally.
When pasta is tender and most of the water is absorbed, turn off the heat and stir in the cheese.
Serve topped with cilantro, sour cream, tortilla chips, whatever your heart desires!
Optional: You could use petite diced tomatoes with green chiles or add in a can of green chiles, corn is also a fun ingredient to add!