Meatloaf Wellington

Ingredients

• 1-1/2 pounds Ground Beef (90% lean or leaner)
• 1/2 cup Panko breadcrumbs
• 1/4 cup whole milk
• 1 small yellow onion, finely minced
• 1/3 cup finely grated carrot
• 3 cloves garlic, minced
• 1 egg
• 2 tablespoons tomato paste
• 1 tablespoon Worcestershire sauce
• 1 tablespoon Dijon mustard
• 1-1/2 teaspoons Kosher salt
• 1 teaspoon fresh thyme, chopped
• 1/2 teaspoon black pepper
• 5 to 6 procuitto slices
• 1 frozen puff pastry sheet (1/2 package), thawed
• Egg wash (1 egg + 1 tablespoon water)
• 2 tablespoons olive oil or butter
• 8 ounces cremini mushrooms, minced
• 1 shallot, minced
• 1 clove garlic, minced
• 1/2 teaspoon thyme
• Kosher salt and pepper, to taste
• 1 cup fresh spinach, packed
• 1 cup milk
• 2 eggs
• 3/4 cup all-purpose flour
• 2 tablespoons butter, melted
• 1/2 teaspoon Kosher salt