1: Preheat the oven to a suitable temperature for cooking salmon.
2: Prepare the sweet potatoes by peeling and chopping them into cubes.
3: Season the salmon fillets with lemon zest, smoked paprika, garlic powder, black pepper, salt, chili powder, and oregano.
4: Toss Brussels sprouts with olive oil and half an onion (sliced).
5: Place the sweet potatoes, Brussels sprouts, and seasoned salmon on a baking sheet.
6: Bake in the oven until salmon is cooked and vegetables are tender, about 20-30 minutes.
7: Drizzle lemon juice over the cooked ingredients before serving.
8: Garnish with chopped cilantro.
