Preheat your oven to 425°F (220°C).
Place the salmon fillet on a lightly greased baking sheet lined with parchment paper. Season with salt and pepper.
Peel and dice the sweet potato into small cubes. Toss them with a drizzle of olive oil, salt, and pepper, then spread evenly on a separate baking sheet.
Trim the green beans and place them in a bowl. Add the minced garlic, a drizzle of olive oil, salt, and pepper. Toss to coat evenly.
Place both baking sheets in the oven. Roast the sweet potatoes for about 20-25 minutes, until tender and slightly caramelized. Bake the salmon for approximately 12-15 minutes, until the fish flakes easily with a fork.
About 10 minutes into the salmon baking time, add the green beans to the oven on a small tray or side of the same baking sheet if space allows, and roast for about 8-10 minutes until tender yet crisp.
Remove all items from the oven. Plate the salmon, roasted sweet potatoes, and garlicky green beans. Serve immediately and enjoy your balanced, nutritious meal.