Season both sides of tuna steak with olive oil, garlic salt, onion powder, and pepper.

Heat olive oil, butter and desired amount of peppercorns in a nonstick pan.

Sear on one side until 1/4 of thickness is done, then flip on other side and do the same. Half the thickness in middle should be uncooked.

Let tuna rest a few minutes, then cut slices against the grain and lay on top of salad.

Select dressing of choice and enjoy!