Amounts given are approximate, I don't tend to weigh things when I cook :s
Fry onions in small amount of oil til brown.
Put on pasta following packet instructions.
Fry bacon with onions til browned.
Add cream, bring to the boil, turn down heat and simmer for 5 mins.
Add generous amount of pepper to taste.
Drain pasta and stir into sauce.
Serve :) yum
To make this more substantial, add garlic while frying onions and add lacto free cream cheese to the cream for a little added extra