Add lemon juice and honey to a small bowl. Whisk to combine. Add the olive oil, season with salt and pepper, and whisk until combined. Set aside.
In a medium pot, bring salted water to a boil. Add the haricots verts and cook for 4 minutes. Remove from the heat, drain, and put them in a bowl filled with cold water. Drain.
Transfer the haricots verts to a serving platter. Arrange the tomatoes, basil, and cheese in between and on top of the haricots verts. Drizzle with the dressing and sprinkle the lemon zest over the top. Season with additional salt and pepper, if desired. Garnish with fresh thyme sprigs. Serve immediately.