Grease the bottom of a baking dish with olive oil. Melt butter with the clove of garlic and set aside while preparing shrimp. Sprinkle bottom of baking dish with half the bread crumbs and oregano. Place shrimp on crumbs in single layer. Pour juice of lemon over shrimp. Remove garlic from butter and pour over shrimp. Put remaining crumbs over shrimp and a little more oregano. Bake at 350 F for 30 minutes or until bread crumbs brown slightly.