Derived from https://www.thewholesomedish.com/the-best-classic-shepherds-pie/
Meat Filling Ingredients
- 2 tbsp olive oil
- 1 cup chopped yellow onion
- 1 lb 90% lean ground beef
- 2 tsp dried parsley leaves
- 1 tsp dried rosemary leaves
- 1 tsp dried thyme leaves
- 1/2 tsp salt
- 1/2 tsp ground black pepper
- 1 tbsp Worcestershire sauce
- 2 minced garlic cloves
- 2 tbsp all purpose flour
- 2 tbsp tomato paste
- 1 cup beef broth
- 1 cup frozen mixed peas & carrots
- 1/2 cup frozen corn kernels
- 1½ - 2 lb russet potatoes (about 2 large potatoes), peeled and cut into 1 inch cubes
- 8 tbsp unsalted butter (1 stick)
- 1/3 cup half & half
- 1/2 tsp garlic powder
- 1/2 tsp salt
- 1/4 tsp ground black pepper
- 1/4 cup parmesan cheese
- Preheat oven to 400 degrees F.
- Place potatoes in large pot and cover with water. Bring the water to a boil, then simmer until potatoes are fork tender, 10-15 minutes.
- Drain potatoes and return them to the hot pot. Let rest for 1 minute to evaporate any remaining liquid.
- Add butter, half & half, garlic powder, salt, and pepper. Mash potatoes and stir well.
- Add parmesan cheese to the potatoes. Stir until well combined.
- Add oil to large skillet and heat over medium-high heat for 2 minutes. Add the onions. Cook 5 minutes, stirring occasionally.
- Add ground beef and break apart with a wooden spoon. Add parsley, rosemary, thyme, salt, and pepper. Stir well. Cook for 6-8 minutes, until meat is browned, stirring occasionally.
- Add Worcestershire sauce and garlic. Stir to combine. Cook for 1 minute.
- Add flour and tomato paste. Stir until well incorporated and no clumps of tomato paste remain.
- Add broth, frozen peas and carrots, and frozen corn. Bring the liquid to a boil then simmer for 5 minutes, stirring occasionally.
- Oven should be preheated to 400 degrees F.
- Pour meat mixture into a 9x9 (or 7x11) inch baking dish. Spread into an even layer. Spoon the mashed potatoes on top of the meat and spread evenly.
- If the baking dish looks very full, place it on a rimmed baking sheet so that the filling doesn’t bubble over into oven. Bake uncovered for 25-30 minutes. Cool for 15 minutes before serving.