Garlic scapes are the perfect way to bring a punch while maintaining volume: add as much or as little to your pesto as you'd like. What I love about pasta dishes like this is that you can choose to incorporate whatever fresh produce you have on hand. I chose to incorporate fresh corn, zucchini, and tomatoes because they're at their peak.
Combine garlic scapes, basil, walnuts, and lemon juice into a food processor. While food processor is running, drizzle in extra virgin olive oil until desired consistency is achieved.
Add parmigiano-reggiano cheese if desired. If freezing, skip this step.
Bring a large pot of water to boil. Prep ingredients while waiting. Cook pasta according to box instructions (subtract a couple minutes to ensure al dente texture).
In a medium pan over medium heat, sautée zucchini, corn, and crushed red pepper flakes for 2 minutes. When pasta has finished cooking, drain and add to the pan. Add approximately 1/3 cup of pesto to the pan and stir to combine (more or less to taste, and to coat all the ingredients).
Remove pan from heat and toss in tomatoes. Top with additional cheese if desired.