I have really cut back my food costs since I started
a) writing a menu for the following week and buying to fulfill that menu, and
b) shopping at Lidl. I now do a weekly shop at Lidl (varies between £10 and £20 - last week was £16, but it included two bottles of Cava) and a fortnightly (or less) shop at Sainsburies (used to be Safeway, but don't like Morrison's - doesn't stock the "higher value/quality" items I want) for the sorts of things Lidl doesn't stock, eg fruit shoots, diet Cloudy lemonade, branded washing powders (can't bring myself to use Lidl's ones), loose Earl gray and Darjeeling tea, large free range eggs, free range chicken, freshly squeezed orange juice, fancy herbs and spices etc etc. That usually comes to between anything between £30 and £50 - but as you can see, I am hardly skimping! If it has reached the threshold, I then get 5p/litre off the petrol, so try to make sure to have the car empty when I go (lathough it is valid for 14 days). Threshold is usually (I think) £50, but they must have lowered it as I got it for a £45 shop last week. But the petrol price is usually good anyway, even without the money off voucher.
Typical Lidl shop would include (as needed) fruit juice (for ds) - large and small cartons - cans of chopped tomatoes/sweetcorn/kidney beans/baked beans, pasta, basmati rice, fruit and veg (tomatoes on the vine, bananas, grapes, onions, garlic, carrots, broccoli etc), premium thinly sliced ham, milk, cheese (good value parmesan, emmenthale, mozzarella), 70% plain chocolate (good for cooking and also for eating the odd square to keep away chocolate cravings ), medium free range eggs, wholemeal bread, crackers, rich tea biscuits, huge multi pack of 24 bags of crisps (only £1.45), chicken nuggets (good but irregular shaped pieces - but only £1.79), 12 pack of mini yoghurts (for ds, aged 4), frozen peas, frozen chips and a bottle of Cava (£3.49) most weeks (our Friday night treat).
Typical menu for a week would be:
Saturday: Lunch - bread, cheese and ham (bread bough at local shop), dinner: roast chicken with peas and roast potatoes
Sunday: Lunch: bacon rolls, dinner -out at my Mum and Dad's
Monday: Cold roast chicken, salad, sauteed potatoes (from left over roasted ones)
Tuesday: Grilled salmon steak with pesto sauce, grilled tomatoes, broccoli and basmati rice
Wednesday: Carrot/veg/lentil soup (whatever dh decides and whatever's in the house), using chicken stock made from roast chicken remains
Thursday: Pasta with homemade tomato sauce
Friday: (veg in front of TV night) Chicken niggets with dips and a bottle of Cava.
At the moment I'm getting lunches (salad) from M&S during the week as I'm trying to reward myslef for being "good" as I'm trying to lose some weight, but if we were tight I'd make up rolls/salad etc.
We're not really pudding pudding people (well, I am, but dh isn't) but Lidl do some nice ice cream or you could make apple pie/plum crumbles etc.