Possible Clues:

• Tiered lunchtime favorite
• Three slices of bread or toast with two fillings
• Suit that a husband's got out and taken in: tuck into this?
• Food from disco somewhere in Kent
• Lunch order
• Part of pack mischievously hid can full of weight -- and big snack
• *Layered lunch
• Lunch often served with toothpicks
• Food item in batter served with old port
• Lunch item with cocktail picks