Compare the price for frozens and even canned items to the price of fresh. Sometimes they are significantly cheaper.
When you find a deal, make sure you try some first as some “deals”” are simply nasty tasting products.
Go on Mondays and Tuesdays and check the very end of the meat coolers. There are usually some discounted meats from the weekend that are perfectly good.
Plant a simple garden with some summer squash or other high yeild low maintenance plants. Nothing too elaborite, just enough to be fun and take an edge off the grocery bills.
Sweet potatoes are INCREDIBLY easy to prepare, relatively cheap and sweet and delicous. If your family is not wild about them plain with butter. Use sugar. Lot’s of it.
Make sure you keep onions and garlic on hand as they make almost anything better. Try to avoid buying soda and if you are don’t buy brand name soda. Koolaid is super cheap comparitavely and the kids usually enjoy making it. Iced tea is another lowcost alternative.
Look for a thrift shop where they sell bread, pasta and other foods cheaper.
Also look up this outfit. “Angel Food Ministries” I will look for them later myself. They sell prepacked food packages that are nutritous. Basic things like chicken nuggets, vegepacks etc.. They work through churches and you preorder a set package and pick it up when it’s ready.
My husband boils them, then blends them in with regular mashed potatoes, for "golden potatoes". They taste good, and our grandson loves them.