If your friends, such as they are, don't have more motivation than the average person to not kill you with ill-prepared food, then you should think about getting better friends.
Salmonella - 1/20000 eggs. Beef/pork - sterile inside, parasites are virtually eliminated from the commercial pork, so only charring on the surface is needed. Salmon - anisakis cannot pass the intestine barrier anyway.
Any food that has been brought to boil/pressure cooker - safe.