Just a note here, I bet your mom wasn't buying "dinners," she was buying "ingredients." Ingredients take up a lot more space in the cart per dollar spent. Sometimes that's because you pay a premium for prepared foods, (flour vs cookies) and sometimes it's because there's inherent waste, like onion skins, and both ends of that head of celery, and the bones of the whole chicken, and the stem, seeds, and vacant space inside a bell pepper. Also, not judging the beer, but in my childhood Dad bought all the alcoholic beverages from the liquor store in a separate trip. So it wouldn't have been in the grocery bags, nor on that receipt.

Inflation is real. But it's important to:

A. Make accurate comparisons

B. Value the work that went into turning those ingredients into dinners.