Preheat your oven to 425°F (220°C).
Toss the broccoli florets with a little olive oil, salt, and pepper, and spread them out on a baking sheet.
Roast the broccoli in the preheated oven for about 15-18 minutes until crisp-tender and lightly browned.
Meanwhile, steam the cauliflower florets until tender, about 10 minutes.
In a small pan, warm a few drops of olive oil over medium heat and lightly sauté the minced garlic until fragrant. Set aside.
Place the steamed cauliflower in a food processor, add the sautéed garlic, and blend until smooth. Season with salt and pepper to taste.
Season the salmon fillet with salt and pepper. Heat a non-stick skillet over medium-high heat with a drizzle of olive oil.
Sear the salmon, skin-side down first if applicable, for about 3-4 minutes per side or until it reaches your desired doneness.
Plate the seared salmon alongside a serving of roasted broccoli and top with a generous scoop of garlic cauliflower mash.
Serve immediately and enjoy a well-balanced, flavorful dinner.