Bring a large pot of salted water to a boil. Add the green beans and bring the water back to a boil. Cook the beans until cooked but still bright green, 3-5 minutes. Drain and add to the water bath to stop the cooking. Drain the beans well.

then pour it into the skillet. Make the dressing and toss: whisk together minced onion, minced garlic, olive oil, lemon zest, and 1/2 teaspoon salt, and pepper.

then taste and add more lemon juice. and serve promptly.