Preheat your oven to 400°F (200°C) and line a large baking sheet with parchment paper.
Pat the salmon fillet dry with a paper towel and place it on one side of the prepared baking sheet.
In a small bowl, combine the almond meal, dried parsley, dried dill, garlic powder, sea salt, and black pepper.
Spread the Dijon mustard evenly across the top of the salmon fillet, then press the herb-almond mixture firmly into the mustard to create a crust.
Trim the woody ends off the asparagus and place the spears on the other side of the baking sheet.
Drizzle the olive oil over the asparagus and toss to coat, ensuring they are spread in a single layer.
Roast in the oven for 12-15 minutes, or until the salmon is cooked through and flakes easily with a fork.
Remove from the oven and squeeze fresh lemon juice over both the salmon and the asparagus before serving.