Wash and dry the mixed salad greens in a salad spinner.

Hull and slice the strawberries, segment the orange, and slice the cucumber into thin rounds.

Thinly slice the red onion.

In a medium bowl, whisk together the olive oil, orange juice, lemon juice, honey or maple syrup, salt, and pepper until emulsified.

In a large serving bowl, combine the salad greens, strawberries, orange segments, cucumbers, and red onions.

Drizzle the vinaigrette over the salad mixture and gently toss to coat.

Before serving, sprinkle crumbled feta cheese and toasted walnuts or pecans over the top.

Serve immediately in a wide, shallow bowl.