Boil noodles according to the directions

In large pot saute the onions.

Add cream to pot (turning down the temp)

Add cheeses and bacon to the pot and blend until smooth.
If cheese blend is not thin enough add cream.

Add noodles to the cheese blend and mix until noodles are covered evenly.

Now put into pans and cover with foil.

Bake on 375 until hot, about 30 minutes.

Optional:
Remove foil and bake until top is light brown.