Mix the monster hand (meatloaf):

Preheat the oven to 350 degrees.  Line a baking sheet with foil and spray it lightly with cooking spray or use a silicone mat on the sheet.  Set aside.

In a large bowl, stir together the egg, onion, garlic, bread crumbs, milk, Worchestershire sauce, ketchup, dried thyme, pepper, and salt, until well combined.

Dump the ground beef into the bowl.  Use your hands to lightly mix the beef into the wet ingredients.  Take care not to overmix or compress the ground beef.  This will make your meatloaf tough.

Turn the mixture out onto the prepared baking sheet.  Mold the meat into the shape of a hand.

Tuck the cube of cheese into the ‘palm’ of the hand.

Make the topping:

In a small bowl, whisk together the ketchup, brown sugar, and mustard.  Spoon the mixture onto the base of the hand so that it resembles blood.

Cut the onion petal into five slivers and place one sliver onto the fingertips like nails.

Bake in the preheated oven for 30-45 minutes until done.

Meanwhile, make the mash:

Bring a medium pot of salted water to a boil.  Add the potatoes and cook until tender – about 15 minutes.

Drain the potatoes.

In the same pot, pour in the milk and add the butter.  Warm over medium heat until the butter has melted.

Add the potatoes back to the pot and use a potato masher or electric mixer to mash the potatoes until smooth.

Season to taste with salt and pepper.

Spoon the potatoes into the bottom of a large serving platter.

Use a spatula to carefully lift the monster hand off of the baking sheet and place it on top of the potatoes.

Serve hot.