Groceries will have to get a lot more expensive than they are now before I start cutting big corners in that department.
Eating good healthy food prepared at home has more benefit than a few bucks a month more in the bank account.
There's a lot of fat in my food budget.

I eat pretty high on the hog, though I have slacked off on buying ribeye. You can still pick up tri-tip for $3.47/lb. locally, and I just bought a ham butt portion for $1.88/lb. I made a pot of navy beans and ham with the bones and rind from the last ham, and was shocked that the really big market I shop at was out of navy beans. None. No great northern or kidney beans either.
It might seem like paying $18 for a 10 lb. ham is a budget buster, but the ham meat went to a couple dinners, a couple omelets, a big batch of mac 'n cheese, plus the big pot of navy beans. Call it $1.50 per meal, $2.00 with other ingredients. Cooking is key to thrift. My dinner last night was a baked potato topped with sloppy joe. The sloppy joe is only about 1/3 burger. The rest is onion, tomato sauce, and seasoning. Cheap eats.
Our Thanksgiving feast this year will be Dungeness crab, steamer clams, and green salad tossed with caviar, fresh baked bread rolls, and a good white wine, probably a dry Riesling, with Marionberry pie, whipped cream, and good coffee for dessert. I'll leave the turkey and dressing for people who don't live near the North Pacific. The ingredients alone will run over $30/plate, but it's a feast day. We don't eat like that often, and would never pay the over $100/plate price in a restaurant. With transportation, tips, and drinks, dinner for four would run about $600. Forget that.