Step 1

Place the cubed potatoes in a large pot and cover with water. Bring to a boil and cook until the potatoes are fork tender, about 15-20 minutes.

Step 2

Drain the water and mash the potatoes with a potato masher or fork.

Step 3

Add the milk, butter, salt, and pepper, and continue mashing until the mixture is smooth and creamy.

Step 4

In a large skillet, heat the olive oil over medium heat. Add the ground beef and cook until browned, breaking into pieces as it cooks, 7-10 minutes. Drain grease and return the ground beef to the pan.

Step 5

Add the diced carrot, onion, frozen peas, frozen corn and minced garlic, salt and black pepper.

Step 6

Cook for an additional 5 minutes, stirring occasionally. Spoon the beef mixture into the bottom of the crockpot.

Step 7

Spread the mashed potatoes on top of the beef mixture, making sure to cover it completely. Cook on high for 3-4 hours or on low for 6-8 hours, until the potatoes are golden brown and the filling is hot and bubbly. Top with parsley, if using.