Preheat the oven to 385° F.

Mix the scallops, lemon juice, and half of the melted butter in an ovenproof baking dish and add a small amount of salt and pepper, as desired. Sprinkle the breadcrumbs evenly over the scallops and then drizzle the remaining melted butter over the breadcrumbs.

Bake in the preheated oven until the scallops are just cooked through—approximately 10 minutes for bay scallops and 18-20 minutes for sea scallops. If the breadcrumbs have not browned nicely, switch the oven setting to broil for one minute until the desired color and a slightly crisp texture is achieved.