Slice two of the Blood Orange (3) half. Juice three of the halves and strain juice into a small bowl.
Slice away the peel of the remaining half and the remaining whole orange, then carefully slice into disks. Set the oranges aside.
To complete the dressing, add the Olive Oil (1 tablespoon), Balsamic Vinegar (1 tablespoon), Dijon Mustard (1/2 teaspoon), Shallot (2 tablespoon), and a couple cranks of Ground Black Pepper (to taste) to the blood orange juice.
Whisk vigorously until combined. Adjust to taste and set aside.
Add Fresh Spinach (2 handful) to a plate and sprinkle place oranges on top of the spinach. Sprinkle with Feta Cheese (1/4 cup) and Salted Sunflower Seed Kernels (1 1/2 tablespoon).
Slice the Avocado (1/2) and peel back the skin, adding the avocado strips to the salad. Shake or whisk dressing once more and drizzle over salad to taste. Serve immediately and dream of California produce.