We are also a family of 3 - my husband, myself and my 2 year old. We do not have any pets though!
I spend approximately £40-£50 a week on food shopping and that includes nappies and baby wipes.
First of all, I always get my main shopping in Aldi. Aldi is brilliant value for money, their super 6 that they have on every week helps to introduce fruit and vegetables into our diet as they are so cheap! Each week I stock up on plenty of fresh fruit and vegetables, plus dairy products like cheese, yogurts and long-life milk.
Our typical meal plan looks like this:
Monday: Hunters Chicken with chips and salad
Tuesday: Butternut Squash Curry with Rice
Wednesday: Meatballs and Pasta and vegetables or salad on the side
Thursday: Chicken Katsu Curry with rice and broccoli
Friday: Fish and Chips with Mushy Peas (sometimes we do get a takeaway but very often we just do it from home)
Saturday: Burger Night
Sunday: Roast Dinner
Like I said, it varies each week but each meal I always put vegetables in. I use frozen vegetables to put on the side because it is more convenient and cheaper! For lunches, will be chicken sandwiches (buy a whole chicken, cook it in oven then shred it once cooked and save it for the week to nibble on or put into sandwiches).
Of course my shopping budget can increase if I end up buying things from the aisle but otherwise our actual food shopping is around £40-£50 a week mark.
I must say, with two cats to feed as well I don't think £60 sounds too bad! But always go for discounted stores and take advantage of the super 6. They also do cheap pet food which is just as good as branded food!