Pat the salmon dry and season both sides with salt and pepper.
Heat a non-stick skillet over medium-high heat and add half the olive oil.
Place the salmon fillet skin-side down (if applicable) in the skillet, cooking for about 3-4 minutes until a golden crust forms.
Flip the salmon and cook for an additional 3-4 minutes, or until the salmon is just cooked through; remove from heat and set aside.
In a separate pan, heat the remaining olive oil over medium heat and add minced garlic, sautéing until fragrant.
Add the green beans to the pan and sauté for 4-5 minutes until they become crisp-tender; season with salt and pepper.
Steam the cauliflower until very tender, about 8-10 minutes.
Mash the steamed cauliflower with a fork or immersion blender until smooth; season with a pinch of salt, pepper, and stir in lemon juice.
Plate the cauliflower mash, arrange the garlic green beans alongside, and top with the seared salmon.
Serve immediately and enjoy your balanced, nutrient-rich dinner.