Follow these steps to create the perfect Croissant Breakfast Sandwich:

1. Prepare the Egg Mixture
   • Whisk the 12 large eggs in a large bowl until they’re mixed and frothy.
   • Add in the 1/2 cup of whole milk, 1 tsp of kosher salt, and 1/4 tsp of black pepper. Mix until the ingredients are well combined.
2. Cook the Scrambled Eggs
   • Melt 1 tbsp of unsalted butter in a skillet over medium-low heat.
   • Pour the egg mixture into the skillet.
   • Allow the eggs to sit for about 2 minutes until the edges start to set.
   • Stir gently every 30 seconds until the eggs are almost set, which should take about 6-8 minutes. Then remove them from the heat.
3. Assemble the Sandwiches
   • Spread 2 tbsp of Dijon mustard evenly on the bottom halves of the 6 croissants.
   • Place a slice of turkey or chicken deli meat on top of the mustard.
   • Add 1/2 cup of the scrambled eggs on top of the meat.
   • Sprinkle 1/4 cup of shredded sharp cheddar cheese over the eggs.
   • Complete the sandwich by placing the top half of the croissant on each.
4. Bake the Sandwiches
   • For immediate serving, preheat your oven to 350°F (175°C).
   • Place the sandwiches on a baking sheet and bake them for 8-10 minutes, or until the cheese is melted and the sandwiches are warm throughout.