Bring a large pot of water to a boil. Add the pasta and cook until al dente (approx. 8-10 minutes). Drain and rinse with cold water.
While the pasta is cooking, remove the stems from the kale and roughly chop it. Add the kale, basil, garlic, sunflower seeds, lemon juice, salt & pepper to a food processor. Blend until a chunky sauce starts to form - scraping down the sides as needed. With the motor running, pour in the oil until your desired consistency is reached. Taste and adjust the seasonings as needed. Set aside.
To a large mixing bowl add the pasta, pesto, sun-dried tomatoes, shallot, feta, arugula and chickpeas. Toss until combined, taste and add more lemon juice or salt if needed.
Serve at room temperature or chilled with extra lemon wedges on the side.
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Notes
This can be prepped ahead of time and kept in the fridge until ready to serve. It is best eaten same day, so the arugula doesn't wilt. If making for meal prep, leave the arugula out and add it to each serving individually.