Preheat the oven to 350 degrees. Line a baking sheet with aluminum foil, spray with cooking spray and set aside.

Heat oil in a nonstick skillet on the stovetop to medium heat. Add the onion and cook till translucent, 5-7 minutes.

Combine the garlic powder and Mrs. Dash seasoning with the cracker crumbs and milk in a large bowl and set aside.

Combine 1/2 cup of ketchup and 1 tbsp of the Worcestershire sauce in a small bowl and set it aside.

Add the ground beef, sausage, remaining ketchup and Worcestershire, egg, seasoning mix, and garlic powder to the large bowl with the soaked cracker crumbs. Mix until well combined.

Using your hands, arrange the meatloaf mixture on the prepared baking sheet to form a head and mummy body.

Spread the Worcestershire sauce and ketchup mixture over the meatloaf.

Bake for 50 minutes.

Remove the mummy meatloaf from the oven and let it cool for at least 20 minutes, if you don't let it cool the puff pastry may slide off it.

Increase the oven temperature to 425 degrees.

Use a pizza cutter to cut long strips of puff pastry, cover the mummy meatloaf body and head with the strips.

Brush the egg and water egg wash over the puff pastry.

Decorate your mummy with edible eyes as desired, enjoy!