Ingredients

• 1/4 cup mayonnaise
• 1 tablespoon milk
• 3/4 teaspoon sugar
• 1/4 teaspoon prepared mustard
• 1/8 teaspoon celery seed
• 2 (10 inch) flour tortillas, warmed
• 1/4 lb thinly sliced deli ham
• 1/3 cup swiss cheese, shredded
• 2/3 cup lettuce, shredded
• 1 medium tomatoes, seeded and chopped
• 1 green onion, chopped