Similar budget here. Agree with pp's.
A couple of suggestions. It's cheaper to buy a joint of meat to make several meals rather than say several packs of chicken. I roast a chicken and strip it to make chicken casserole. The stripped chicken is added to about 15 onions and carrots and makes about 4 - 5 days worth of chicken casserole which I freeze in separate portions. I use this recipe www.jamieoliver.com/recipes/chicken-recipes/humble-chicken-stew-dumplings/. I don't however use the carcass for this as he suggests; I do it separately and use it to make chicken soup.
If you need to be frugal you can stretch a chicken. We've got a frugal week coming up and this is my meal plan (2 adults, 7yo & 2yo):
Sunday: Roast Chicken with roast potatoes, parsnips, veg, yorkies and sausagemeat stuffing - I'll use the thighs and drumsticks for the roast and the rest will go in other meals
Monday: homemade chicken soup and crusty bread using the chicken wings from chicken, the carcass for stock with scraps
Tuesday: pasta in tomato sauce and sausage meatballs with veg
Wednesday: Bacon and mushroom risotto
Thursday: Homemade Chicken, bacon, Mushroom and Sweetcorn Pie with vegetables (using 1 chicken breast from the roast chicken)
Friday: Chicken and vegetable korma and rice (using 1 chicken breast from the roast chicken)
Saturday: Pizza, garlic bread and salad
Primarily I'm buying a large chicken and a few repetitive ingredients (to utilise the quantity that I buy them in) - mushrooms, bacon, rice etc. Mushrooms, sausages and sweetcorn I will buy frozen as cheaper.
I shop in Aldi and Lidl mostly but I shop around too.