(Mom wrote out this recipe not long before she was diagnosed with Alzheimer's.)
1 1/2 lb. ground chuck
1 small can tomato paste
1 onion, diced
salt and pepper to taste
3 lb. Yukon Gold potatoes, peeled
1 c. milk
6 T. butter
optional: 1/2 c. drained canned peas
optional: 3/4 c. cooked carrots
Brown meat in skillet and drain. Set aside.
Add tomato paste and diced onion to skillet and cook until onion is browned.
Add optional peas and carrots.
Add onion mixture to meat and spread in Pyrex baking dish.
Meanwhile, cook potatoes in boiling water until tender.
Drain and mash with milk and butter.
Put mashed potatoes on top of meat mixture and place under broiler until browned.