Creating Spinach Berry Salad with Sweet Poppy Seed Dressing is simple and fun. Follow these steps for a delicious outcome:

1. Prepare the Greens: Rinse the spinach leaves thoroughly under cold water. Shake off excess water or use a salad spinner to dry them.
2. Slice the Strawberries: Remove the green tops from the strawberries and slice them into thin pieces.
3. Combine Berries: In a large mixing bowl, gently toss the sliced strawberries, blueberries, and raspberries together.
4. Add Spinach: Add the fresh spinach leaves to the bowl with the berries. Gently mix to combine without bruising the leaves.
5. Add Optional Ingredients: If using, sprinkle in the crumbled feta cheese and chopped walnuts or pecans. These additions add extra flavor and texture.
6. Dress the Salad: Drizzle the poppy seed dressing over the salad just before serving. Toss gently to ensure the dressing coats all the ingredients evenly.
7. Serve Immediately: For the best texture and flavor, serve the salad right away.

These straightforward steps will guide you to create a vibrant and delicious Spinach Berry Salad that everyone will love!