For straight-up size changes, sure.

Here's one that got me recently. The El Monterey frozen burrito, Steak & 3-Cheese version. It used to be just steak and cheese as the filling. And some chilies. https://i.imgur.com/os3RK8y.png

They swapped that out for one with rice included. It tastes worse, has less protein, almost certainly less cheese, but still sells for the same price. https://i.imgur.com/hgGTNVI.png

No mention on their website of this at all. If it were an improvement, I'd expect the marketing department to tout it. But it's not. Instead of raising the frozen burrito price from $1 to $1.19 or whatever, they replaced expensive ingredients with rice.

It's still the same SKU, weighs the same, and sells for the same price. I'm sure the CPI impact is 0.