Preheat oven to 350 degrees.
Chop green pepper, onion and celery.
Cover scallops with cold water in saucepan; bring to a boil.
Melt 2 tablespoons butter; mix with crumbs.
Saute green pepper, onion and celery in remaining butter for about 5 minutes.
Arrange layers of scallops, cheese and vegetables in greased :asserole; season each layer with salt and pepper.
Pour cream over top.
Bake at 350 degrees for 30 minutes.