Leftovers: Refrigerate in an airtight container for up to three days.
Nut-Free: Omit the walnuts or use pumpkin seeds or sunflower seeds instead.
Additional Toppings: Add grated carrots, green or red onion, bell pepper or cucumber.
Make it Vegan: Omit the egg and top with chickpeas, lentils, or marinated tofu instead.