If using ribeye, follow same instructions as sirloin steak in Steps 1 and 3, cooking over medium heat until steaks reach minimum internal temperature, 4-6 minute per side. Rest, 3 minutes. Halve to serve.
If using chicken breasts, follow same instructions as sirloin steak in Steps 1 and 3, cooking until chicken reaches minimum internal temperature, 5-7 minutes per side.
If using salmon fillets, pat dry and season flesh side with a pinch of salt and pepper. Follow same instructions as sirloin in Step 3, cooking, skin side up first, until salmon reaches minimum internal temperature, 4-6 minutes per side.