How often do you buy groceries?
What types of things do you consider “essential”?
Do you make a list when you go shopping, or just have an idea of what you need?
Do you do one big trip all at once, or do you pick up just enough to make what you’re eating that night/the next day?
My groceries aren’t interesting, but I had a friend who only ate what went into a mug.
He carried around a ceramic mug, either collecting free stuff or telling people about his mug to see if they’d put food in it. Free samples, a few grapes, and occasional hand outs all went into the mug. I filled it with soup when he came by.