Greek Style Salmon With Avocado Tzatziki

Ingredients

• 24 ounces salmon , cut into 4 portions
• 2 tablespoons olive oil
• 2 tablespoons lemon juice
• 1 teaspoon lemon zest
• 1 tablespoon yogurt
• 1 garlic clove , grated
• 1 teaspoon oregano
• 1/4 teaspoon salt
• 1/4 teaspoon pepper
• 2 cups avocado tzatziki ( recipe below )
• 1 large ripe avocado , mashed
• 1/2 cup plain Greek yogurt
• 1/2 cup cucumber , peeled , seeded , grated , and squeezed to drain
• 1 tablespoon fresh dill , chopped
• 2 tablespoons lemon juice ( about 1/2 lemon )
• salt
• pepper