- 2 bulbs fennel, trimmed and thinly sliced
- 1/2 red onion, thinly sliced
- 1 green apple, peeled and thinly sliced
- 1 teaspoon lemon juice
- 1 red grapefruit – peeled, white pith cut off, and sectioned
- 2 tablespoons chopped toasted walnuts, or to taste
- 1 tablespoon torn basil leaves, or to taste
- 2 teaspoons lemon juice, or to taste
- 2 teaspoons lime juice, or to taste
- 2 teaspoons grapefruit juice, or to taste
- 1/4 cup extra-virgin olive oil, or to taste
- salt and ground black pepper to taste
- Layer fennel, onion, and apple slices in a salad bowl and drizzle apple with 1 teaspoon lemon juice. Top salad with red grapefruit sections, toasted walnuts, and basil leaves.
- Whisk 2 teaspoons lemon juice with lime juice, grapefruit juice, and olive oil in a small bowl; season to taste with salt and black pepper. Drizzle dressing over salad and serve.