Creamy, savory seafood in a rich Old Bay–kissed sauce, topped with golden Cheddar Bay biscuit clouds. This easy, crowd-pleasing pie bakes up bubbling and irresistibly fragrant for a cozy coastal dinner.
Preheat oven to 400°F. Lightly grease a 9-inch deep pie dish or a 9×9 inch baking dish.
Warm olive oil and 4 tablespoons butter in a large skillet over medium heat. Add onion, celery, and carrot; cook until softened, about 5 minutes. Stir in garlic and cook 0.5 minute.
Sprinkle flour over the vegetables. Cook, stirring, for 2 minutes to form a blond roux.
Whisk in white wine (optional) and reduce for 1 minute. Gradually whisk in seafood stock until smooth; simmer 3 to 5 minutes until thickened. Stir in heavy cream, lemon juice, Old Bay, salt, and pepper; simmer 2 minutes.
Fold in potatoes and peas and cook 2 minutes. Add shrimp and scallops; cook just until edges turn opaque, about 2 minutes. Remove from heat, gently fold in crab and parsley, then transfer filling to the prepared dish.
In a bowl, combine Cheddar Bay Biscuit Mix, cold milk, and shredded cheddar to make a thick drop-biscuit dough.
Spoon the dough in heaping tablespoons over the hot filling, leaving small gaps for steam to escape.
Bake 22 to 25 minutes, until biscuits are golden and the filling is bubbling around the edges.
Stir the seasoning packet (from the mix) into the melted butter and brush over the hot biscuits. Rest 10 minutes to set.
Garnish with chives and serve warm.
Notes
For a thicker gravy, simmer an extra 2 to 3 minutes after adding stock. You can swap seafood stock with clam juice or low-sodium chicken broth. If using frozen seafood, thaw and pat very dry before cooking to prevent a watery filling.