In a medium bowl, whisk together olive oil, orange juice, lemon juice, and honey or maple syrup until well combined and slightly emulsified. Season with salt and pepper to taste and set aside.

In a large serving bowl, add mixed salad greens, strawberries, segmented orange, and thinly sliced cucumber. Gently add red onion and toss the ingredients lightly to combine.

Drizzle the prepared citrus vinaigrette over the salad and toss gently to coat all ingredients.

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

Serve the salad immediately to maintain freshness, in a wide, shallow bowl for presentation.