IZZA in a bun | Crunchy and delicious SNACK!

Ingredients:
• 4 rolls
• 4 eggs
• 2-3 sprigs of spring onions
• 100g cheese
• 120g ham
• 2 cucumbers
• 1 tomato
• 1 tablespoon mayonnaise
• 1 teaspoon tomato paste
• 1 tablespoon butter