You need to share your shopping/cooking list with us.
It really depends on your preferred cuisine/diet and your bio-region. We try to follow the seasons, and I'm slowly upgrading how many preserving methods I have, and the space for them to get through the lean months. So our diet often changes through the year, but right now it looks something like this:
Note that basically all things are made from scratch (bread, snacks, granola, yogurt, etc). I'm a SAHP but most of my recipes are very minimal hands-on time, so even a working person could easily do these things (IMO).
Breakfast: eggs on toast (me), scrounged baked goods (wife), waffles/granola/yogurt (kids)
Daytime: since I homeschool, we tend to graze throughout the day. Kids typically eat seasonal fruit, one of them will also eat veggies and mushrooms, granola, crackers, PB sandwiches, etc. DW usually takes whatever leftovers we have, or a sandwich as a last resort.
Dinner: pasta marinara, pizza (cheese, mushroom, unfortunately I struggle to find humanely-sourced charcuterie, so we haven't had meat toppings in a while, though I will do sausage-making when our hog order comes through in a few weeks), stir fry, fish pastries, lentil+rice burritos, tacos with bison 50:50 with shredded summer squash, breakfast for dinner, frittatas, etc. So many inexpensive options that can be made in big batches.
Budget Bytes is a website many Mustachians like for inexpensive recipe ideas. I occasionally use it for inspiration.
I track every single grocery purchase. My current spreadsheet doesn't have much live data yet, since I completely redid the categories, but if it's helpful:
https://docs.google.com/spreadsheets/d/1iqnuCwHE-Ok9tXGfC9e0yCzs-Qax7JvnZzUf9XeINfs/edit?usp=sharingWe do garden as well. Last year it shaved a few hundred dollars (mostly from summer and winter squash) - significant, but not earth-shattering. This year it will be bigger, but the soil is still quite poor, so we'll see what kind of yield we get.
Not sure if that helps or not.