Blue Lake is a stringless variety found at farmers' markets and specialty foods stores. Others work well, too, as long as they're fresh and tender.
Ingredients
2 pounds Blue Lake green beans
2 tablespoons (1/4 stick) butter
2 teaspoons chopped fresh thyme
1 teaspoon finely grated lemon peel
Directions
Cook beans in boiling salted water until crisp-tender, 4 to 5 minutes. Drain. Rinse with cold water; pat dry. DO AHEAD Can be made 4 hours ahead. Layer between paper towels and refrigerate.
Melt butter in large skillet over medium-high heat. Add beans, thyme, and peel; sprinkle with salt and pepper. Toss until heated, about 5 minutes.
