01 - Cook pasta in large pot of salted boiling water according to package instructions until al dente. Reserve 1/2 cup pasta water, then drain and set aside.
02 - Pat shrimp dry and season with salt, pepper, and paprika.
03 - Heat 2 tbsp olive oil in large skillet over medium-high heat. Add shrimp in single layer and cook 1-2 minutes per side until pink and opaque. Transfer to plate.
04 - In same skillet, add remaining 1 tbsp olive oil and garlic. Sauté 30 seconds until fragrant. Add red pepper flakes and lemon zest, stir briefly.
05 - Pour in lemon juice and broth, scraping up browned bits. Simmer 2 minutes.
06 - Add spinach and cook, stirring, until just wilted, about 1 minute.
07 - Reduce heat to low. Add cooked pasta, butter, and half parsley. Toss to coat, adding reserved pasta water as needed for desired consistency.
08 - Return shrimp to pan and toss to combine. Taste and adjust seasoning. Serve immediately garnished with remaining parsley, Parmesan, and lemon wedges.