From minestrone to shrimp fra diavolo, pretty much any dish with canned tomatoes you see on her blog specifies that the ingredient be “diced with scissors.”
“Don't knock me, it's tradition,” she said while cooking a weeknight pasta Bolognese in a video on Facebook. Using scissors to cut pizza also happens to be an Italian tradition.
Using scissors, you can simply cut the tomatoes directly into the pot or in the can they came in. This method also keeps all the juices from the tomatoes contained.