Preheat your oven to 425°F. Line a baking sheet with parchment paper.
Toss the broccoli florets lightly with a dash of olive oil, salt, and pepper, and spread them on the baking sheet.
Place the broccoli in the oven and roast for 15-20 minutes until they begin to develop a slight char and are tender.
Meanwhile, steam the cauliflower florets until soft, about 8-10 minutes.
In a small saucepan, gently heat the steamed cauliflower with unsweetened almond milk, salt, and garlic powder. Once soft, transfer the cauliflower to a blender or use a fork to mash it until smooth and creamy.
Pat the salmon fillet dry and season with salt, pepper, and a dash of garlic powder.
Heat a non-stick skillet over medium-high heat and add the olive oil. When hot, place the salmon skin-side down (if applicable) and sear for about 3-4 minutes. Flip the salmon and cook for an additional 3-4 minutes, or until the salmon reaches your desired doneness.
Plate the seared salmon alongside the roasted broccoli and a generous scoop of cauliflower mash.
Serve immediately and enjoy your hearty, nutritious dinner.