Pineapple-chunks or rings
You can see pasta was on sale, and DH has never seen a low priced box of pasta he didn't like so I believe he bought 10. Tuna is his other proud buy. I once came across a sale on store brand pineapple chunks at something like $ .59 a can, almost half price, and bought a case of 24. That might have been excessive, but it was when my older kids were teens, and I had a toddler. I couldn't fit that many in my pantry without sacrificing just about everything else. I had read an analogy in the Tightwad Gazette about bulk buying storage and finding unconventional places. She compared storing cases of bulk bought items at rock bottom prices to having someone pay you, perhaps $50 a month, to store something under your bed. I think I found a space in the laundry room, but the idea was the same, though my savings was probably more like $12. I haven't bulk bought quite like that since but still make sure I toss extras of these essentials into my cart.
Combined with odds and ends from the rest of my pantry, freezer or refrigerator, I can pretty much wing it for any food need without having to go to the grocery store. Needing to stretch dinner because a friend came home with DD? Cook up a side of rice pilaf in broth and serve pineapple in sauce dishes. A request to drop off a desert at church or for a work potluck? Pumpkin bars, pumpkin bread, or pumpkin cake can be ready in an hour. Impromptu trip to the Lake? Make a tuna salad, or enough tuna for sandwiches, and grab buns and chips on route. DD wants childhood comfort food after a grueling day of tests? Macaroni in tomato soup, a la spaghettios, fit the bill. Canned bean such as baked beans, chili beans, or garbanzo beans can be cooked with the rice, or combined cold with the pasta, or mashed and made into a sort of burger, and I have a protein filled main dish.
No one in our family has any food sensitivities such as gluten, so I have it quite easy. I won't say my family likes me raiding the pantry as our sole menu plan, but in a pinch, can appreciate the relevancy of having core items at the ready. Besides baking goods, spices, and seasonings what items do you always have on hand?