1/4 cup honey
1/4 cup Dijon mustard
1/2 pound asparagus, stems trimmed, ends peeled and cut into 2-inch pieces
1 cup cooked lentils
8 trout fillets, skin on
3/4 teaspoon salt
1/2 teaspoon freshly ground pepper
1/3 cup olive oil
4 tablespoons unsalted butter
1 cup walnuts
3 tablespoons plus 1/2 cup balsamic vinegar
1 pound baby spinach, well rinsed and spun dry