1 small onion, thinly sliced and separated into rings
3 tablespoons lemon juice
1/2 teaspoon salt
1/8 teaspoon ground red pepper
1 1/2 pounds new potatoes
6 ounces cream cheese, softened and cut into 1/2-inch cubes
1/2 cup half-and-half
2 small serrano chiles, seeded and finely chopped
1/4 teaspoon salt
1/4 teaspoon ground turmeric
Bibb lettuce leaves
12 Greek olives
3 hardboiled eggs, peeled and cut into quarters