01 - Slice and peel all citrus fruits, removing the white pith completely. Cut into rounds or segments and set aside.
02 - Halve the avocado, remove the pit, and slice the flesh thinly.
03 - Thinly slice the red onion into even rings or half-moons.
04 - In a small bowl, whisk together the olive oil, lemon juice, honey or maple syrup, Dijon mustard, salt, and pepper until well emulsified.
05 - Arrange the mixed greens on a large serving platter. Layer the citrus segments, avocado slices, and red onion evenly over the greens.
06 - Scatter the pomegranate seeds and crumbled feta over the assembled salad.
07 - Drizzle the prepared dressing evenly over the entire salad.
08 - If desired, finish with torn fresh mint leaves and chopped toasted pistachios or walnuts. Serve immediately.