01 -
Cook rotini pasta in a large pot of boiling salted water according to package instructions. Drain thoroughly and rinse with cold water. Allow to drain completely and set aside.
02 -
In a large skillet over medium heat, cook the ground beef, breaking it into crumbles, until fully browned and no pink remains, about 8 to 10 minutes.
03 -
Stir in the taco seasoning until the beef is evenly coated. Remove the skillet from heat.
04 -
In an extra-large mixing bowl, combine the cooled rotini pasta, seasoned beef mixture, cherry tomato halves, sliced green onions, shredded cheddar, shredded Monterey Jack, and Catalina dressing. Toss until all ingredients are evenly coated with dressing.
05 -
Cover the bowl and refrigerate for at least 4 hours, allowing flavors to meld and pasta salad to chill thoroughly.
06 -
Just before serving, fold in the crushed nacho cheese Doritos and chopped cilantro if using. Serve immediately.