Start by gathering all your fresh ingredients for the Avocado Grapefruit and Fennel Salad. Thinly slice the fennel using a mandolin or sharp knife, ensuring uniformity for a stunning presentation. Cut the avocado into chunks and segment the pink grapefruit, removing the outer skin and membrane for clean pieces. Set these beautiful ingredients aside on a large plate for easy assembly.

In a large mixing bowl, combine the sliced fennel, avocado chunks, and grapefruit segments. Add a generous handful of lightweight greens such as baby spinach or watercress to create a vibrant base. The colors will be visually striking, so take a moment to appreciate the freshness of your assembled ingredients before moving on to the next step.

In a small jar, combine fresh squeezed grapefruit juice, extra virgin olive oil, and white balsamic vinegar. Add the minced shallot, a dash of grainy brown mustard, followed by a sprinkle of kosher salt and freshly ground black pepper. Seal the jar tightly and shake vigorously until the dressing is well combined and emulsified, creating a deliciously tangy mix that will elevate your Avocado Grapefruit and Fennel Salad.

Drizzle 3-4 tablespoons of the prepared citrus dressing over the salad mixture in the big bowl. Take a moment to season with additional kosher salt and black pepper to taste, ensuring the flavors are balanced. Gently toss the salad with your hands or a large spoon to coat every ingredient evenly, allowing the fresh dressing to enhance the vibrant flavors of the avocado, grapefruit, and fennel.

Once the salad is well mixed, take the time to shave some Parmesan Reggiano for an added layer of flavor. Generously sprinkle the thin Parmesan shavings over the top of the salad for a wonderful salty contrast. This finishing touch not only adds depth but also enhances the visual appeal of your Avocado Grapefruit and Fennel Salad, making it look as incredible as it tastes.

Spoon the beautifully dressed salad onto individual plates, showcasing the colors and textures. Serve immediately to enjoy the freshness of the ingredients, or keep it chilled in the refrigerator for a short time if preparing ahead. This refreshing salad can be enjoyed as a light lunch or as a vibrant side for any meal, bringing a burst of flavor to your dining experience!