This citrusy salad provides plenty of vitamin C, healthy fats from avocado, and iron-rich pumpkin seeds.
Cut off peel and white pith from oranges, then slice oranges crosswise.
Zest and juice limes into a large bowl. Whisk in oil, salt and pepper. Gently toss in avocados.
Arrange lettuce on a large platter and top with oranges, avocado mixture (including liquid) and pumpkin seeds.