2-3 hours prior to serving, slice the cherry tomatoes in half and place in a large bowl. Add olive oil, garlic salt, salt and pepper. Add basil (reserving just enough to garnish the dish later). Stir together and refrigerate until ready to serve.
When ready to serve, bring a large pot of salted water to a boil. Cook the pasta according to package instructions and drain.
Remove the marinating tomatoes from the fridge and add the pasta directly to the bowl.
Sprinkle in the parmigiano reggiano and toss.
Serve immediately with fresh basil as garnish. Enjoy!