Avocado and Orange Salad with Walnuts

INGREDIENTS:

l Head lettuce; torn into
-pieces, (I use a soft
-"butter" lettuce, or
-romaine)
1 Purple onion; thinly sliced,
-(or other if not available)
2 cn Mandarin Oranges; drained,
-(11oz cans)
1 Or 2 Avocados; peeled and
-sliced
4 oz Flaked almonds