Ham Delight

Ingredients

• 2 sticks butter, softened
• 1 small onion, finely chopped
• 3 Tbsp. mustard
• 3 Tbsp. poppy seed
• 1 tsp. Worcestershire sauce
• 2 lb. thinly sliced baked ham
• 1 1/2 to 2 lb. sliced Mozzarella cheese
• 4 pkg. small dinner rolls
• 1 large red bell pepper
• 1 thin and crusty French bread
• 1 Tbsp. extra-virgin olive oil
• 1 Tbsp. red-wine vinegar
• 2 or 3 very thin slices Mozzarella cheese
• 4 to 6 large Arugula leaves or 4 Radicchio leaves
• 4 thin slices ripe tomato
• freshly ground black pepper to taste
• 4 thin slices baked smoked ham or turkey