This healthy dinner recipe is perfect for those who want a light and refreshing meal. Cook some salmon fillets according to your preferred method and let them cool. Cut some avocado into cubes and toss it with some mixed greens. Add some cherry tomatoes and sliced cucumber. For the dressing, whisk together some olive oil, lemon juice, and Dijon mustard. Drizzle the dressing over the salad and top with the cooked salmon. Enjoy!