Gather all ingredients.

Combine green beans, olive oil, garlic, and salt in a bowl; toss to coat. Allow green beans to marinate for 30 minutes.

Preheat the grill for medium heat and lightly oil the grate. Arrange green beans on a grill pan.

Place the grill pan on the preheated grill; cook and stir green beans until lightly charred and cooked to desired doneness, about 10 minutes.