Step 1

Bring a large pot of salted water to boil. Add tortellini and cook for 1 and 1/2 minutes. Do not over cook!

Step 2

Drain and rinse under cold water until cool.

Step 3

Place tortellini in a large serving bowl. Add in pesto, tomatoes, cheese, and onion. Toss well to coat.

Step 4

Serve at once, or cover and place in the fridge for up to 3 days.