1 tablespoon Worcestershire sauce (gluten-free if needed)
1/2cup beef or chicken broth
2 tablespoon tomato paste
1/2cup frozen peas, thawed
Salt
Pepper
Mashed Potatoes:
4–5 large russet potatoes (750g), peeled and diced
1/4cup chicken stock
2 tablespoons butter
Salt
Pepper
Instructions
Preheat oven to 350°F.
Begin by cooking the potatoes. In a large pot, bring water to a boil, add potatoes, and cook for 15-20 minutes until potatoes can easily be pierced with fork.
While the potatoes are boiling, begin on filling. In a skillet on medium heat, add oil and then add diced carrot and onion and cook for 3-4 minutes until vegetables are tender.
Add ground beef to the pan, and cook for 5 minutes until no longer red/pink, using a spoon to gently break up the meat as it cooks. Add in minced garlic, dried thyme and rosemary and cook for another minute until fragrant.
Season meat mixture with salt and pepper and then add in Worcestershire sauce, tomato paste, peas and broth. Stir into meat mixture to ensure everything is well combined. Turn up the heat to bring mixture to a gentle simmer and allow to cook 10-15 minutes until liquid is reduced and filling has thickened.
While the filling is reducing, finish the mash potatoes. Strain boiled potatoes and return them to the pot with butter and chicken stock. (You can also use milk/cream but using chicken stock is a lighter way to make a really rich and creamy mashed potato.) Using a potato masher or fork, mash the potatoes together for a creamy consistency, and season with salt and pepper to taste.
Once the filling has reduced and thickened, remove it from the heat and cover it with the mash potatoes. Using a spoon or spatula add dollops of mashed potatoes to the top of the filling and then evenly spread it out across the mixture. (I like to use a fork to create a fun design in the mash potatoes, but this is totally optional.)
Transfer the skillet to the oven and cook for 15-20 minutes until golden on top and bubbling on the sides.
Serve with your favourite green vegetables or salad.