Put the romaine leaf on the cutting board. Use the teaspoon to spread the hummus on the leaf.
Put the spinach on top of the hummus.
Use the teaspoon to spread the yogurt over the spinach, then sprinkle with the seeds.
Add the tomato slices, then top with the avocado or guacamole.
Sprinkle the brown rice on top of the avocado.
Roll up the romaine leaf as tightly as possible. Serve right away.