01 - Preheat oven to 400°F. Lightly grease a large baking dish with cooking spray or butter.
02 - Boil pasta in salted water for 2 minutes less than package directions. Drain and set aside—pasta will finish cooking in the oven.
03 - In a large skillet over medium heat, melt butter with olive oil. Add garlic and shallot, sauté until fragrant, about 1-2 minutes.
04 - Add shrimp to skillet, season with salt, pepper, and red pepper flakes. Cook 2-3 minutes until just pink—avoid overcooking.
05 - Pour in white wine, scraping up any browned bits from the bottom. Simmer for 2 minutes to reduce slightly.
06 - Add lemon juice and zest, then stir in heavy cream. Simmer 2-3 minutes until sauce thickens. Remove from heat and stir in parsley.
07 - Toss cooked pasta with shrimp sauce and 2/3 of the parmesan cheese until evenly coated.
08 - Transfer mixture to prepared baking dish. Top with mozzarella and remaining parmesan cheese.
09 - Bake for 15-18 minutes until cheese is melted and bubbly with golden spots. Let rest 5 minutes before serving.
10 - Sprinkle with additional fresh parsley and serve with lemon wedges on the side.