Wash and thoroughly dry your baby spinach. Excess moisture will dilute your dressing and make the salad soggy. Use a salad spinner if you have one — it makes a noticeable difference. Slice your strawberries, red onion, and avocado. Roughly chop the walnuts to your preferred size.
In a small bowl or mason jar, combine the olive oil, apple cider vinegar, honey, turmeric, black pepper, Dijon mustard, and sea salt. Whisk vigorously or seal the jar and shake until fully emulsified. Taste and adjust sweetness or acidity as needed. The dressing should be bright, tangy, and slightly sweet.
Place chopped walnuts in a dry skillet over medium heat. Toast for 3–4 minutes, stirring frequently, until fragrant and lightly golden. This step dramatically deepens their nutty flavor. Watch carefully — walnuts can burn quickly. Remove from heat and let cool before adding to the salad.
Add the baby spinach to a large serving bowl as your base. Layer on the blueberries, sliced strawberries, red onion, and avocado slices. Scatter the toasted walnuts and pumpkin seeds across the top. If using cheese, crumble it evenly over the entire bowl for balanced flavor in every bite.
Drizzle the turmeric honey dressing over the salad just before serving. Start with half the dressing, toss gently, then add more to taste. Overdressing is one of the most common salad mistakes — you want every leaf lightly coated, not swimming. Serve immediately for the best texture and freshness.