Fire up your grill to get it nice and hot. For a gas grill, use medium-high heat, or around 400 to 425 degrees Fahrenheit. If using a charcoal grill, heat the coals at least 20 minutes in advance.
Transfer the chopped salmon to a large mixing bowl and add in the avocado oil, salt, pepper, and garlic powder. Toss everything together until the salmon pieces are coated in oil and seasonings.