I'm looking for slow cooker recipes that take almost zero effort to prepare...

...and one such recipe makes reference to tomatillos! I was like, "What the hell is a tomatillo? A tiny tomato?" and my esteemed colleague said "Tiny armadillos that look like tomatoes?" So now, here is the real question:

Where the hell do I find tiny little armadillos that look like tomatoes to put in my slow cooker?