Preheat oven to 400 and line baking sheet with foil.
In a small bowl, combine all the oil, lemon juice, oregano, salt, pepper, garlic powder, and parsley. Pour over Salmon Fillets and let marinate for 10-15 minutes.
Combine tomatoes, red onion, parsley, lemon juice, 1 tsp oil, and salt/pepper to taste. Set aside.
Transfer Salmon to oven and bake for 15-17 minutes, depending on the size of your fillet.
Meanwhile, heat another T of oil in a cast iron skillet. When oil is hot, add kale, salt, pepper, and garlic powder. Lightly saute for 1-2 minutes, then transfer to serving bowls.
To assemble, place salmon on top of sautéed kale with a dollop of tzatziki. Add sliced avocado, tomato mixture, and cucumber slices. Serve with a lemon wedge and enjoy!