Clean the scallops with your finger under water (there is often some sand in them). Dry the mussels and sour them with a little lemon juice.
Chop the shallot, garlic and parsley and mix with the cream. Add the parmesan and enough breadcrumbs to make an almost greasy paste. Add a little olive oil, lemon juice, finely grated lemon zest and a little salt and pepper and stir with a small spoon. Then pour the paste into the clams so that the clam meat is covered.
Cleverly, the mussels find an excellent place on 4 metal egg cups and can be baked brown in just 10 minutes at 200 ° C. It is advisable to keep an eye on the clams.