Makes 8 servings
Toss spinach and onion rings in a salad bowl. Slide romaine leaves in around edge of bowl, and arrange avocado slices on top of spinach and onions. Scatter almonds and blueberries over avocados.
To make blueberry vinaigrette, place blueberries, vinegar and honey in a blender. Blend until smooth. Add salt and drizzle in oil while blending. Drizzle vinaigrette over salad immediately before serving.