Orange Salad with Onions and Olives

2 large oranges, pared and thinly sliced
2 cups shredded lettuce
1 large onion, thinly sliced
8 Greek olives, sliced
2 tablespoons olive oil or vegetable oil
2 tablespoons lemon juice
1/8 teaspoon salt
Dash of ground red pepper

Arrange orange slices on lettuce; top with onion and olives. Shake remaining ingredients in tightly covered container; drizzle over salad.

Yields 4 servings.