These loaded mashed potato cups are made in two main stages: baking the potato shells and preparing the cheeseburger filling.

Step 1: Preheat the Oven

Preheat your oven to 400°F.

Position an oven rack near the center.

Generously grease a standard 12-cup muffin tin with cooking spray or softened butter.

Make sure to coat the bottoms and sides of every muffin cup.

This step is important because mashed potatoes and melted cheese can stick to the pan during baking.

A well-greased nonstick muffin tin works particularly well.

Step 2: Prepare the Mashed Potatoes

Place 3 cups of cooled prepared mashed potatoes into a large mixing bowl.

The mashed potatoes should be thick enough to hold their shape when scooped.

If you’re using freshly made mashed potatoes, allow them to cool before adding the egg.

Hot mashed potatoes can begin cooking the egg before the mixture reaches the oven.

Step 3: Add the Garlic Parmesan Ingredients

Add the grated Parmesan cheese, egg, melted butter, minced garlic, garlic powder, black pepper, and salt to the mashed potatoes.

Stir until everything is evenly incorporated.

The mixture should be thick, creamy, and cohesive.

Make sure the egg is fully mixed into the potatoes so the cups bake evenly.

Taste the mashed potatoes for seasoning before adding the raw egg, or season based on how salty your prepared potatoes already are.

Step 4: Divide the Potato Mixture

Spoon the potato mixture evenly among the 12 prepared muffin cups.

Try to distribute approximately the same amount into each cup.

This helps the potato shells bake at a similar rate.

Step 5: Shape the Potato Cups

Using the back of a spoon or your fingers, press the mashed potato mixture firmly against the bottom and up the sides of each muffin cup.

Create a well in the center large enough to hold the cheeseburger filling.

Aim for a relatively even thickness.

Avoid making the bottoms too thin because they may break when removed from the pan.

The potato mixture should form a sturdy shell with a clearly defined center.

Step 6: Pre-Bake the Potato Shells

Place the muffin tin in the preheated oven.

Bake for approximately 20–25 minutes.

The potato edges should begin turning golden brown and developing a lightly crisp surface.

The centers should become firmer, although they will still be soft.

This initial baking stage helps the potato cups hold their shape before the meat and cheese are added.

Step 7: Reinforce the Centers

Carefully remove the muffin tin from the oven.

If the potato cups have puffed or the centers have become shallow, gently press the middle of each cup with the back of a spoon.

This restores the wells for the filling.

Be careful because the muffin tin and potatoes will be hot.

Keep the oven at 400°F for the final baking stage.

Step 8: Cook the Bacon

While the potato cups bake, place the bacon slices in a large skillet over medium heat.

Cook until browned and crispy, turning as needed.

Transfer the bacon to a paper towel-lined plate.

Allow it to cool slightly, then crumble or chop it into small pieces.

Set aside.

Step 9: Brown the Ground Beef

Carefully drain most of the bacon grease from the skillet.

Add the ground beef and finely diced onion.

Cook over medium-high heat for approximately 6–8 minutes.

Use a wooden spoon or spatula to break the beef into small crumbles.

Continue cooking until the beef is browned and the onion is softened.

Drain excess grease.

Smaller beef crumbles are easier to spoon into the potato cups and create a more evenly distributed filling.

Step 10: Season the Cheeseburger Filling

Add the Worcestershire sauce, smoked paprika, onion powder, salt, and black pepper.

Stir thoroughly.

Continue cooking for approximately 1 minute to distribute the seasonings.

Make sure the ground beef reaches an internal temperature of 160°F.

The finished filling should be savory and flavorful without excessive liquid or grease.

Step 11: Fill the Potato Cups

Spoon the seasoned ground beef into each pre-baked potato cup.

Divide the filling as evenly as possible.

Press the beef gently into the wells, but avoid packing it so tightly that the potato shells crack.

The filling should sit comfortably inside the potato cups.

Step 12: Add the Crispy Bacon

Sprinkle the crumbled bacon over the ground beef.

Distribute it evenly so every cup contains some bacon.

The bacon adds a smoky crunch that complements the tender beef and creamy potatoes.

Step 13: Add the Cheddar Cheese

Top each filled potato cup with shredded cheddar cheese.

Use approximately 1 cup of cheese across the 12 cups.

The cheddar should cover the beef and bacon without spilling too far over the sides.

For an extra-cheesy finish, add a small pinch of additional cheddar if desired.

Step 14: Bake Until the Cheese Melts

Return the muffin tin to the 400°F oven.

Bake for approximately 8–10 minutes.

The cheddar should melt completely and become bubbly.

The potato edges should develop a deeper golden color.

Watch carefully during the final few minutes to prevent excessive browning.

Step 15: Cool Before Removing

Remove the muffin tin from the oven.

Allow the potato cups to rest for approximately 5–10 minutes.

This resting period is important because the potato shells are delicate while very hot.

As they cool slightly, the egg and Parmesan help the structure firm up.

Avoid removing them immediately because they may break apart.

Step 16: Carefully Remove the Potato Cups

Run a small silicone spatula or butter knife gently around the edges of each cup.

Carefully lift the potato cups from the muffin tin.

If a cup feels stuck, loosen the sides gradually rather than pulling it forcefully.

Transfer the cups to a serving plate.

Step 17: Garnish and Serve

Sprinkle the warm potato cups with chopped green onions.

Serve with ketchup, yellow mustard, or your favorite burger sauce.

For a classic cheeseburger-inspired finishing touch, add dill pickle slices on the side.

Enjoy while the cheddar is melted and the potato edges are still crisp