My family request this one for every family bbq.

1 box bowtie pasta, cooked
1 jar traditional mayo
1 block Kraft cheddar cheese, cubed
1 brown onion, diced
A couple celery sticks sliced
Half a red capsicum, diced
Half a green capsicum, diced
2.5 teaspoons curry powder - or to taste

I mix everything but pasta together and let it sit til the pasta is cold. Then mix it all together and refrigerate.
Best to make it the day before so all the flavours get yummy together.