Chef John's Yucatan-Style Grilled Pork
I garnished mine with cilantro and pickled onions. To make your own, thinly slice some red onions and cover them with red or white wine vinegar. Leave to soak for 4 hours or overnight, and that's it!
I think this easy marinade would work on all kinds of pork cuts, but the tenderloin is very user-friendly, and its mild flavor really takes to these ingredients.
Once grilled, you have so many options for enjoying these tenderloin chunks. Sandwiches, salads, and tacos are all wonderful choices, and I've also heard from a reliable source that diced, they make for an epic pan of nachos.