2 pounds Romano beans (a.k.a. flat or pole beans) or other summer green beans, ends snapped and strings removed
Sea salt and ground black pepper
Leaves from 3 sprigs fresh basil
Leaves from 3 sprigs fresh mint
Directions
Build a hot wood fire in your grill. (You can do the same with charcoal. If you’re using a gas grill, place a few hardwood chunks under the grate over one or two of the burners. Heat one burner on high heat and additional burners on medium heat, adjusting the heat as necessary.) Brush and oil the grill grate.
Combine ¼ cup oil and the garlic in a small saucepan and cook over low heat until the garlic is fragrant but not browned, 8 minutes. Remove pan from heat and let cool. Stir in red-pepper flakes, lemon zest and parsley.
Place beans in a large bowl with the remaining ¼ cup olive oil. Season with salt and pepper and toss to mix.
Arrange beans directly on the grill or in a wire grill basket. Grill beans until charred and crisp-tender, 3 to 4 minutes, turning with tongs. (You may need to work in two batches, depending on the size of your grill.)
Return hot beans to the mixing bowl and stir in garlic-parsley oil. Squeeze in lemon juice. Stir in basil and mint leaves and serve.