Preheat your oven to 375°F (190°C) and prepare a baking sheet lined with parchment paper.

Open the refrigerated biscuit dough and place each biscuit on the prepared baking sheet, leaving space between them.

In a large mixing bowl, combine cooked shrimp, lump crab meat, and shredded cheddar cheese. Add mayonnaise, Dijon mustard, lemon juice, garlic powder, Old Bay seasoning, salt, and pepper. Mix until well incorporated.

Fill each biscuit with spoonfuls of the seafood mixture, allowing it to overflow slightly.

Bake in the preheated oven for 15-20 minutes or until the biscuits are puffed and golden brown.

Remove from oven, let cool slightly, and garnish with chopped parsley before serving.

Allow melts to cool slightly before eating to enjoy without burning your mouth.