Drain and chop the artichokes. Cut up the avocado, tomatoes, garlic, and onion.
Add the chopped artichoke hearts, avocado, tomatoes, onion, and garlic to a large bowl. Toss with olive oil and seasonings to coat, then refrigerate the salsa while you cook the chicken.
Then, make your chicken tenders:
Trim the chicken tenderloins. Start heating 1.5 tablespoon of olive oil in a 12″ cast iron skillet over medium-high heat, while you mix together the chili powder, oregano, cumin, garlic powder, smoked paprika, and sea salt.
Season the trimmed chicken tenderloins on both sides. (Make this easier: Use half of the seasoning mixture to season one side, then place the chicken seasoned-side down in the pan so that you can season the other.)
Cook the chicken tenders in the cast iron skillet over medium-high heat for 3-4 minutes a side, or until nicely browned and cooked through.
Top your chicken with the artichoke avocado salsa. Serve immediately,
Notes
My tenders were fairly thick, so took almost 4 minutes a side to cook through. If yours are thinner, 3 minutes per side might do — cut into one, to make sure no pink remains in the middle before serving. Easily flip the small chicken pieces by using tongs.