Heat the oil in a heavy-bottomed skillet over medium-high heat.
Once hot, add the green beans and cook for 5 to 8 minutes or until they begin to blister, tossing occasionally.
Add the chili oil and garlic and toss for 30 seconds.
Turn off the heat and add the sesame oil, rice wine vinegar, sea salt, and sesame seeds. Toss to combine. Serve immediately.
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Notes
Cooking Tips - These spicy green beans cook quickly. Keep your eye on the skillet to make sure the beans aren't blistering too much. Toss them with some tongs every minute to make sure they all get cooked.Storage - Leftover beans will keep for up to 4 days in an airtight container in the refrigerator.