Preheat your oven to 400°F and prick the Russet potato several times with a fork.
Place the potato directly on the oven rack and bake for 40-45 minutes until the center is completely tender.
In a small mixing bowl, whisk together the Dijon mustard, chopped fresh parsley, lemon juice, garlic powder, sea salt, and black pepper.
Pat the salmon fillet dry with a paper towel and spread the herb mustard mixture evenly over the top of the fish.
Once the potato is cooked, slice it in half lengthwise and carefully scoop the flesh into a bowl, leaving a thin shell of skin.
Mash the potato flesh with the non-fat Greek yogurt and chopped chives until smooth and creamy.
Spoon the potato mixture back into the skins and place them on a parchment-lined baking sheet next to the herb-crusted salmon.
Bake the salmon and potatoes together for 12-15 minutes until the salmon flakes easily with a fork and the potatoes are hot.
Steam the broccoli florets for 5 minutes until vibrant green and serve immediately alongside the salmon and potatoes.