Ok so the biscuits and gravy post reminded of a little something a make sometimes.
Basically, on a weekly basis, I roast a bunch of veggies (usually zuchinni, summary squash, carrots, and sometimes tomatoes). I cut, spray on olive oil spray, cover with kosher salt and pepper and roast in a 425 degree oven for about 35-45 minutes.
Put in a food processor with low/no fat Beef Broth (1 can usually has 30 cals). Blend for a while and move to a sauce pan. Add water for your thickness needs and season as wanted. Simmer for about 10 minutes. Tastes just like gravy and is pretty much just vegetables.
I also make this as a soup with chicken broth or vegetable broth. It goes great over the top of brown rice and chicken.