Preheat your oven to 400°F and line a baking sheet with parchment paper.
Trim the woody ends off the asparagus and place them on the baking sheet, drizzling with half of the olive oil and a pinch of salt.
Roast the asparagus for 12-15 minutes until tender and slightly charred.
Steam the cauliflower florets and garlic clove until very soft, about 10 minutes.
Transfer the steamed cauliflower and garlic to a blender or food processor, add the nutritional yeast, and blend until smooth and creamy.
Season the salmon fillet with salt and pepper.
Heat the remaining olive oil in a non-stick skillet over medium-high heat.
Place the salmon skin-side down in the pan and sear for 4-5 minutes until the skin is crispy.
Flip the salmon and cook for another 3-4 minutes until cooked through to your preference.
Plate the cauliflower mash first, top with the seared salmon, and serve the roasted asparagus on the side.