Ham and Swiss Salad in a Jar

Ingredients

• 3/4 cup mayonnaise
• 1/3 cup reduced-fat sour cream
• 2 tablespoons water
• 1-1/2 teaspoons white wine vinegar
• 1/4 teaspoon sugar
• 1/8 teaspoon salt
• 1/8 teaspoon pepper
• 1/3 pound cubed fully cooked ham
• 2 cups frozen peas, thawed
• 1 small red onion, halved and thinly sliced
• 6 hard-boiled large eggs, chopped
• 1/4 pound bacon strips, cooked and crumbled
• 1 cup shredded Swiss cheese
• 4 cups torn iceberg lettuce (about 1/2 head)
• 6 cups fresh baby spinach