Boil water and cook pasta to al dente per package instructions. Meanwhile, cut tomatoes into bite-sized pieces.

Heat a skillet to medium high heat and add olive oil.

Drain cooked pasta and reserve 2/3 cup of pasta water.

Add pesto and as much pasta water as you desire (I start with half and add more if necessary) to the skillet with the tomatoes. Stir and cook for 1-2 minutes.

Turn off heat and add pasta to the skillet. Stir the pasta into the sauce and allow the residual heat to gently cook it all together (roughly 1 minute). Enjoy!