Cook 1 cup French lentils in salted simmering water until tender, about 25 minutes, adding 1/2 pound chopped haricots verts during the last minute of cooking; drain and let cool. Whisk 3 tablespoons white wine vinegar and 1 tablespoon each minced shallot, Dijon mustard and chopped thyme in a large bowl; whisk in 1/3 cup olive oil. Add the lentils, haricots verts, 8 sliced radishes, 3 slices thick-cut bacon (chopped and cooked), 2 cups torn frisee and 1/2 cup pitted nicoise olives. Season with salt and pepper and toss.
Photograph by Bobbi Lin