Boil green beans 5 mins. Drain / transfer to ice water.
Blend garlic + avocado oil until spoonable.
Heat skillet over high, add oil, then green beans in a single layer. Let blister 1-2 mins undisturbed, toss and repeat.
Add garlic oil, cook 1-2 mins until fragrant. Remove beans.
In same pan add soy sauce, sugar + sesame oil and cook until glossy.
Pour over beans, add lemon zest + juice, salt