The Shepherd's Pie is the perfect balance of a savory sauciness mixed with ground beef and veggies, topped with just the right amount of "oh so good" mashed potatoes. It is pure comfort food without feeling overly heavy. You too are going to be obsessed with this Shepherd's Pie with Ground Beef.
For the filling, heat oil in a 10-12 inch cast iron skillet (or oven safe pan) over medium heat. Add onion, celery, carrot and cook until softened, about 15 minutes.
2 Tbsp. Olive oil, 1 small onion, ½ cup celery, ½ cup carrot
Add the ground beef and garlic, and crumble/cook until browned, about 5 minutes.If you have a lot of excess grease drain some before moving on.
1 pound ground beef, 3 cloves garlic
Stir in the rosemary, salt, pepper, garlic powder, onion powder. Stir around. Then add the tomato paste, stir to coat the beef and veggies.
2 tsp. fresh rosemary, 1 ½ tsp. Kosher salt, ½ tsp. pepper, 1 tsp. onion powder, ½ teaspoon garlic powder, 2 Tbsp. tomato paste
Sprinkle in the flour and cook 1 minute.
2 tablespoon all purpose flour
Deglaze the skillet with the red wine, beef broth and Worcestershire, scrape up any bits from the bottom of the pan. Simmer and reduce, about 4-5 minutes .
1 Tbsp. Worcestershire sauce, 1 ½ cup beef broth, ½ cup red wine
Stir in the frozen peas and corn. Simmer filling for 2-3 minutes
1 cup frozen peas, ½ cup frozen corn
Remove from the heat. Taste the filling to see if it needs additional seasoning (salt or pepper)
If your skillet isn't oven safe OR if you are making this dish ahead, transfer the filling to a 2 quart baking dish.
Assembly & Baking
Dollop the mashed potatoes evenly over the filling. Using a spoon or spatula, spread the potatoes evenly over the filling and all the way to the edges of the skillet.
Transfer the skillet to the oven. Bake at 350°F degrees for 30 minutes. Mom's Tip: You may want to put a baking sheet or foil under the skillet to catch any drips or boil overs.
You can place under the broiler for 5 minutes at the end if you want the top to be golden brown.
Let the Shepherd’s Pie rest for 5-10 minutes before serving.
Making Ahead
The Shepherd's Pie can be made a day or two ahead and kept covered in the fridge. You may need to add 5 minutes to the cooking time to warm through straight from the fridge.
Freezing
Assemble your shepherd’s pie, but don't bake in the oven. Let it cool completely in the refrigerator before freezing.Cover the top with a layer of plastic wrap, followed by a tight layer of heavy duty foil to prevent freezer burn.Freeze for up to three months.
Thaw in the fridge overnight and bake at 350°F for 30-40 minutes.