Adapted from Shepherd's Pie on foodnetwork.com
Much like shepherd's pie this is a meat base with a mashed potato top, but we have decreased the meat and added a bunch of veggies and increased the gravy type binder. Super good and very flexible. Feel free to swap whatever veggies or meat you would like for what is below. Just make sure that harder longer cooking veggies are added at the beginning with carrots and onions and softer quick cooking veggies are added at the end with the corn and peas.
For the potatoes
4 pounds potatoes (any variety you like)
1/2 cup half-and-half
1 stick (1/2 cup) unsalted butter
1 1/2 teaspoon kosher salt
1/2 teaspoon freshly ground black pepper
2 egg yolk
For the meat filling
4 tablespoons canola oil
1 cup diced celery (or onion)
2 cups diced carrots
1 1/2 diced celery root or parsnip (or leave out and slightly increase the rest of the veggies)
1 lbs ground meat (we have used beef and pork, if you use chicken or turkey you will need to increase the oil a little)
1 1/2 teaspoon kosher salt
1/2 teaspoon freshly ground black pepper
4 tablespoons GF flour blend
1 1/2 tablespoons tomato paste
2 cups chicken broth
2 teaspoon Worcestershire sauce
2 teaspoons freshly chopped rosemary leaves
2 teaspoon freshly chopped thyme leaves
1 cup fresh or frozen corn kernels
1 1/2 cup fresh or frozen English peas
1/2 cup cooked spinach
Roughly chop potatoes and cook in well salted boiling water until soft enough to easily crush with tongs or spoon. Start checking after 10 minutes actual time will depend on how small you chop you potatoes and what variety you use.
Warm half and half and butter in a microwave safe bowl for 45 seconds. It does not need to be all the way melted.
Drain potatoes and return to pan. Mix in half and half, butter, salt and pepper and mash. Stir in the yolk until well combined.
Preheat the oven to 400 degrees F.
While the potatoes are cooking, prepare the filling. Place the canola oil into a 12-inch or larger saute pan and set over medium high heat. Once the oil shimmers, add the onion, celery, celeriac and carrots and saute until they begin to soften 5-7 minutes.
Push the veggies to the outer edge of the pan and add the meat, salt and pepper and cook until browned and cooked through, approximately 3 minutes.
Mix the veg back into the meat and sprinkle with the flour and toss to coat, continuing to cook for another minute.
Add the tomato paste, chicken broth, Worcestershire, rosemary, thyme, and stir to combine. Cook stirring often for 5 to 10 minutes until the sauce is thickened slightly.
Add the corn, peas and spinach to the mixture and spread evenly into a 9 by 13 by 2 inch glass baking dish.
Top with the mashed potatoes, starting around the edges to create a seal to prevent the mixture from bubbling up and smooth with a rubber spatula.
Place on a parchment lined half sheet pan on the middle rack of the oven and bake for 25 minutes or just until the potatoes begin to brown. Remove to a cooling rack for at least 15 minutes before serving.