This is a very basic pasta salad recipe that I grew up with.
1 bottle of Italian dressing
1 box Tricolor rotini pasta
Mini pepperoni (or full sized quartered)
1 can olives, halved
Cheddar cheese chunks
Cook the pasta as directed and let it cool. Cut Olives in half, cut small cubes of cheese, and cut pepperoni in fourths (unless you get the mini ones). Put all ingredients except the cheese in a bowl and mix it up. You can put the cheese in or just put it into a small container until right before serving so it doesn't get soggy. Let it chill in the fridge for an hour or so before serving.