Thinly slice half of lemon and place in a large plastic bag (I use a big mixing bowl)
Add shrimp, oil, paprika, salt, pepper, and shake/toss to combine
Steam zucchini until tender in separate small pan
Heat a large skillet over medium-high heat. Pour shrimp mixture into skillet, spread into a single layer and cook for 2 minutes per side until shrimp are pink. Add juice from remaining lemon half and toss to combine.