Pat the salmon fillet dry and season with salt and pepper.
Heat a non-stick skillet over medium-high heat and add 1 tsp olive oil.
Sear the salmon fillet skin-side down for about 3-4 minutes, then gently flip and cook for an additional 3-4 minutes until the flesh is opaque and slightly golden.
While the salmon is cooking, bring a small pot of water to a simmer and lightly steam the green beans until they are crisp-tender, about 4-5 minutes.
In a separate pot, steam the cauliflower florets until very tender, roughly 8-10 minutes.
Meanwhile, in a small pan, sauté minced garlic (from 2 cloves) in a tiny splash of water or oil for about 1 minute until fragrant, then toss the garlic with the steamed green beans.
Drain the steamed cauliflower and mash it with 1 tbsp nonfat Greek yogurt, a pinch of salt, and pepper until smooth and creamy.
Plate the seared salmon alongside the garlic green beans and a serving of mashed cauliflower, and serve immediately.