What a mess! I had two jars of salsa verde that I was going to use.
Stonewall Kitchen brand. Not sure where I bought them. Exp. 11/2018. Both
jars had gold colored lids and both lids had deteriorated badly to the point
that they left black, crusty chunks all over my counter and in the sauce at
the top. I did not feel that it was safe to eat!

I do know how to make good enchilada sauce from scratch. Can even make salsa
verde from scratch but no time to do so. So... I cobbled together a sauce of
plain tomato sauce and Rotel (tomatoes and chiles) with some added
seasonings. All seemed to be going well after that except that for some
reason, the tortillas totally disintegrated on the chicken ones. Maybe the
chicken was too moist or something? The cheese ones didn't do that. They
still look good.

At least my refried beans and rice both look and taste good.

Has anyone else ever had jars that did this? I could see maybe with a tomato
product but salsa verde isn't tomato.