Season the salmon fillet with salt and pepper on both sides.
Heat 1 teaspoon of olive oil in a non-stick skillet over medium-high heat.
Sear the salmon fillet skin-side down (if applicable) for about 4-5 minutes, then flip and cook for an additional 3-4 minutes, until the fish is just cooked through.
Meanwhile, trim the ends of the green beans and mince the garlic.
In another pan, heat 1 teaspoon olive oil over medium heat, add the minced garlic and sauté for 30 seconds until fragrant.
Add the green beans to the garlic oil, season lightly with salt and pepper, and sauté for about 4-5 minutes until tender-crisp.
Steam the cauliflower until soft (about 8-10 minutes). Transfer to a bowl, add the teaspoon of butter, and mash until smooth. Adjust seasoning with salt and pepper.
Plate the cauliflower mash as a base, top with the seared salmon, and arrange the garlic green beans on the side.
Serve immediately and enjoy your balanced, protein-rich dinner.