Preheat your oven to 375°F (190°C).

Open the package of refrigerated biscuit dough and arrange them on a parchment-lined baking sheet, leaving space between each biscuit.

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

Take a generous spoonful of the seafood filling and place it in the center of each biscuit.

Carefully place the baking sheet into the preheated oven and bake for 15-20 minutes, or until biscuits are puffed and golden brown.

Remove from the oven, let them cool for a few minutes, and sprinkle freshly chopped parsley on top before serving.

Allow the melts to cool slightly before serving to avoid molten cheese.