1. To make Salad: Drain and rinse lentils, then place in a medium stockpot with 1 cup water. Bring to a boil, reduce heat to medium-low, and simmer 18 minutes. Add broccoli, cover pan, and steam 2 to 3 minutes, or until broccoli and lentils are al dente.
2. Meanwhile, to make Honey-Mustard Dressing: whisk together all ingredients in bowl until smooth.
3. Drain off any remaining liquid from broccoli and lentils, and transfer to large bowl. Add dressing, and toss to coat. Season with salt and pepper, if desired. Serve garnished with onion and almonds.