Step 1
Add the pork to a bowl with the lime juice, orange juice, honey, olive oil, and taco seasoning. Let marinate 15-30 minuets. Do not marinate longer or the pork will break down in the lime juice.
Step 3
Heat a cast iron skillet (or heavy skillet) over medium-high heat. Add a drizzle of olive oil. Add the pork in a single layer and let it sear and brown for 2-3 minutes. Stir and repeat until the pork is cooked through, about 5-8 minutes total. Pork tenderloin cooks really quickly and gets dry if cooked too long.