It's part of their Buck & Under value menu and cost me $1.
This is similar from the Loaded Grillers from Taco Bell, which used to be a buck and now cost a little over $1.50 or so. Del Taco's version isn't grilled though and feels plainer without that extra crisping.
The green sauce was present throughout with a very strong tangy flavor as well as a decent kick. It's a little too tangy for my liking as it overpowered much of the other components.