Aldi’s, Kroger (they pulled it) and Walmart.
Beef Products Inc. sells it and it’s packaged to sell in individual stores. It’s labelled “Ground Beef”.
Look, the little people need to eat too. Sorry you have never experienced the steerage section of the grocery store, but with the way this country is going, there are more of us eating this than you know.
It's a filler in those products. You weren't buying a tube of "lean, finely textured beef" product from any of those stores. You were buying ground beef with this filler added (up to around 25% or so).