Lava Sauce implies lots of heat since things have to be pretty hot to liquefy rock, right? Well, upon eating it, I was just a tad disappointed. While I was expecting heat on the order of hot, molten magma, I would have been happy with jalapeno-level heat atop my taco or even something like Taco Bell's already yummy Fire Sauce. But no, the Lava Sauce was like someone went overboard with a pepper shaker. That's not spicy, that's over seasoned. I'm sure some focus group of soccer moms liked it, but they probably clamored for those Fruitista thingys too.
And what's with the red-pink shell? If it was supposed to be a spicy taco shell, it wasn't. I guess it was to fool you into thinking your taste buds were in for some kind of thermodynamic horror.
Sorry Taco Bell. Thumbs down on the Volcano Taco.