Combine all of the sauce ingredients in a blender and blend on high until smooth. Set aside.
Steam broccoli and cook shrimp. Set aside.
Cook pasta to al dente. Reserve 2 cups of pasta water prior to draining.
Drain pasta and return to pot along with prepared sauce, 1 cup reserved pasta water, broccoli, shrimp and spinach. Stir and heat over medium low for 2-3 minutes until warmed through. If you would like a thinner sauce, add more pasta water until you reach your desired consistency.
Serve immediately.
Notes
LeftoversStore leftovers in an airtight container in the refrigerator for up to 4 days or freeze for up to 3 months. Reheat in the microwave.Sauce recipe adapted from Downshiftology.