Mix melted butter, salt, and pressed garlic in a small bowl and set it aside.
Mix Panko bread crumbs and grated Parmesan cheese in another shallow bowl and set it aside.
Take scallops out of the package and pat each one dry with a paper towel.
Toss scallops in the melted butter mixture and then coat each one in Panko/Parmesan mixture on all sides.
Place coated scallops in a baking dish that's large enough to hold them with some space in between each one.
Carefully pour in remaining melted butter in between and around the scallops. (Don't pour on top.)
Sprinkle each scallop with some Parmesan cheese and bake for 10-14 minutes, depending on the size.
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Notes
*Gluten Free Note: you can easily make this recipe gluten free by simply using gluten free panko bread crumbs.
How To Tell If They Are Done: Scallops are cooked through when it turns opaque throughout. The key is to cook the just until they turn opaque and no longer so they don't turn rubbery. There is a little more flexibility in that when you bake them in sauce or butter, but you still don't want to cook them too long. Exact baking time will depend on the size of scallops. If you want to track the internal temperature, you are looking for scallops to be 125°-130° in the center when done.
Storing: Make sure to store cooked scallops in the refrigerator, in an air-tight container for up to 2 days.
Reheating: be careful not to overcook them. Use medium-low heat and reheat them just until warm enough either on stove-top or in the oven.