Begin by cutting the medium-sized whole squid in half lengthwise, remove the cartilage and any innards, and rinse under cold water until clean.

Slice the cleaned squid into half-inch-wide pieces and set aside.

In a bowl, combine minced garlic, gochugaru, black pepper, salt, fish sauce, soy sauce, sesame oil, and sesame seeds. Mix thoroughly to create the sauce.

Chop the green onions into one-inch pieces for garnish.

Place a large pan over high heat and add avocado oil. When the oil shimmers, it's hot enough.

Add the sliced squid to the hot pan, stirring quickly for about one minute until opaque.

Pour the sauce mixture over the stir-fried squid, stirring for another minute.

Toss in the chopped green onions, mixing gently to combine.