Avocado Ciabatta Breakfast Sandwich - California Avocados

Ingredients

• 6 Tbsp. unsalted butter
• 4 individual-size ciabatta rolls (rectangular is best)
• 2 ripe, Fresh California Avocados, seeded and peeled
• 1 lemon, juiced
• 1/4 tsp. salt, divided
• 1 Tbsp. olive oil
• 1 cup arugula
• 12 Eggs
• 3 Tbsp. chives, finely chopped
• 8 oz. thinly sliced prosciutto, separated into 2-oz. portions
• As needed cracked pepper, to taste