Step 1

potatoes: boil the potatoes in a large pot of salted water until fork tender. Sometimes I'll throw in a couple cloves of garlic in with the potatoes too. Drain, mash and mix in the remaining mashed potatoes ingredients and season with salt and pepper to taste.

Step 2

cook the meat and veggies: heat the olive oil in a large oven-safe pot over medium-high heat. Add the ground lamb and crumble the meat using a wooden spoon. Cook for 4-5 minutes or until the meat browns, drain any excess grease leaving just 1 tablespoon. Add the mirepoix and season the veggies with a small pinch of salt and allow the veggies to cook down until translucent, about 7-9 minutes. Add the garlic and let cook another 30 seconds or until fragrant.

Step 3

beef gravy: Position a rack in the center of the oven and preheat the oven to 425ºF. Sprinkle the ground meat mixture with the cinnamon, nutmeg, and cornstarch, stir to combine and let cook for 15 seconds before adding the Worcestershire sauce, tomato paste, herbs, bay leaf, and beef stock. Allow the gravy to come to a simmer before reducing the heat to low and letting it simmer for 15 minutes. Remove the herbs, stir in the peas, taste and adjust with salt and pepper as desired.

Step 4

bake and serve: Drop large dollops of the prepared mashed potatoes on top of the beef gravy then smooth out gently. Bake for 15 minutes then, finish it under the broiler if you want it to be golden brown on top. Let cool for several minutes before serving.