Thaw Seafood: Place frozen mix in a colander under cold running water for 5–10 minutes. Pat dry.
Sauté Aromatics: Heat olive oil in a large skillet over medium heat. Add onion, bell pepper, and garlic. Cook for 3 minutes until soft.
Cook Seafood: Add seafood, paprika, salt, and pepper. Sauté 3–4 minutes until shrimp turn pink and scallops are opaque.
Deglaze: Pour in white wine and lemon juice, scraping up any browned bits. Simmer 2 minutes.
Finish: Stir in butter and lemon zest. Garnish with parsley. Serve immediately.