Cook the pasta as per instructions on packet. Add 1 tbsp olive oil to a hot pan fry the diced bacon and chopped mushrooms.
In a bowl, whisk the egg yolks, double cream, parmesan cheese, chopped parsley, basil and chilli with a pinch of salt and pepper. When the pasta is cooked drain thoroughly. Then add the bacon and mushroom mixture to the pasta, along with the egg and cream mixture. Stir very thoroughly so everything gets a good coating.
Add 1 tbsp oil to a hot pan and sear the scallops for 2 minute each side. To serve place the spaghetti on a plate and place 5 scallops per person on each plate.