Prepare the Beans: Trim the ends and rinse the dragon tongue beans thoroughly.
Heat the Skillet: Place a large skillet over medium heat and add olive oil.
Sauté the Beans: Add the beans to the skillet and cook for 5–7 minutes, stirring occasionally, until tender-crisp.
Add Flavor: Stir in minced garlic, salt, pepper, and optional chili flakes. Sauté for another 1–2 minutes until fragrant.
Finish with Lemon: Remove from heat and drizzle with lemon juice. Toss gently to combine.
Serve: Transfer to a serving dish and garnish with fresh herbs if desired. Serve immediately.