Mix spices in small bowl to combine and rub into fish.
Place sliced sweet potato in a pan and drizzle olive oil and sea salt and 1/8 tsp cinnamon on top
Bake both in oven for 20-25 minutes until fish is cooked (breaks apart with a fork) and sweet potatoes are soft.
Boil water and steam Brussels Sprouts for 4-5 minutes until bright green. They should be tender, but not soft. Drizzle a little olive oil or coconut oil on top.