If I were you I would cut down the salad at lunch to possibly 1 1/2 cups of lettuce instead of using up your 3 cups of salad veggies all at once...

I have also heard that it is best to split up all your carbs thru out the day...

I do the tuna salad with celery and red onions for lunch all the time... and that is a good blend of fat/protien/carbs....

Brussel sprouts are good too but maybe too much..
Have you tried to use heavy cream instead of half/half in your coffee... that might help too.

I am a heavy pourer on the ranch as well... but if you cut the size of the salad in half.. you can also cut the amount of dressing you use in half too...

good luck..