Using a non-stick skillet, cook the ground beef until done. You can add garlic powder to the pan.
Soak up any excess fat in the pan with a paper towel.
Add peas and/or corn and cook for 2 minutes.
Add beef stock and bring to a boil.
Cook until stock thickens into a sauce.
Transfer to 8 x 8 baking dish.
Preheat oven to 425℉
Boil the potates until fork tender.
Add milk and butter and mash.
Spread the mashed potatoes over the meat mixture in the pan.
Pop into the oven for 25 minutes.
When done, prick top with a fork to let the steam out.
Enjoy!