In a large skillet over medium heat, heat the olive and sesame oils, garlic, and red pepper flakes until fragrant. Add the broccolini. Be careful not to overcrowd the skillet.
Cook, stirring occasionally, until the broccolini is tender and slightly charred, about 8-12 minutes.
Remove from heat and garnish with sesame seeds. Enjoy!
Notes
If you want a more tender broccolini, you can add a few tablespoons of water at the end and cover the skillet with a lid for a few minutes.