Leek and Mushroom Cottage Pie

- Total Time
- 1½ hours
- Rating
- Comments
- Read comments
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Ingredients
- 2tablespoons unsalted butter
- 1large onion, diced (about 1½ cups)
- Salt and pepper
- 4medium leeks, tender green and white parts, split lengthwise and cut in 1-inch pieces (about 4 cups)
- 2tablespoons olive oil
- 1pound medium-brown or white mushrooms, quartered
- ½pound shiitake mushrooms, caps only, sliced ¼-inch thick
- 2teaspoons chopped fresh thyme
- 2small garlic cloves, minced
- 2tablespoons chopped parsley
- 2tablespoons white miso (optional)
- 2cups whole milk
- 2tablespoons cornstarch, dissolved in 2 tablespoons cold water
- 3pounds russet or yellow-fleshed potatoes, peeled and cut in 2-inch chunks
- 6tablespoons unsalted butter
- ½cup heavy cream
- Salt and pepper
- 1cup homemade coarse dry bread crumbs
For the Filling
For the Topping
Preparation
- Step 1
Heat oven to 350 degrees. Put butter in a large skillet or Dutch oven over medium-high heat. Add onions and season with salt and pepper. Cook, stirring occasionally, until softened and beginning to color, 5 to 7 minutes.
- Step 2
Add leeks, a little more salt and stir to combine. Cook mixture for about 5 minutes more, until leeks have lost their crunch, but are still green. Turn off heat.
- Step 3
Cook the mushrooms separately (work in batches if necessary): Put olive oil in a large skillet over medium-high heat. When oil is wavy, add both kinds of mushrooms and sauté 2 to 3 minutes, until lightly browned. Season with salt and pepper. Turn off heat and stir in thyme, garlic and parsley, and toss to coat.
- Step 4
Add mushrooms to onion-leek mixture, and turn heat to medium-high. Add miso and milk, and bring to a simmer. Stir cornstarch and water, add to mixture and simmer for 2 minutes, stirring, until sauce thickens. Transfer mixture to a 9-by-13-inch baking dish, and leave at room temperature.
- Step 5
Meanwhile, boil potatoes in salted water until very soft, about 15 minutes. Drain potatoes and mash with 4 tablespoons butter, then stir in cream and beat until smooth. Season with salt and pepper.
- Step 6
Spread mashed potatoes evenly over surface of vegetable mixture. Sprinkle with bread crumbs and dot with remaining 2 tablespoons butter. Bake for 45 minutes, until bubbling and nicely browned.
Private Notes
Comments
The secret to getting the topping right is to use cold, leftover mash. If it’s hot when you bake it, it can turn into a sludgy mess. But if it’s cold, this is when it crisps up nicely into a golden brown in the oven. Also a note on veganising recipe, cashew nuts soaked in water and then blitzed make a fine cream replacement.
I haven't made this yet, but when I do, based on the reviews here, I'm going to roast my mushrooms rather than sautee them. Roasting mushrooms at a high heat makes them chewy and meaty-tasting, plus one can do them all at once, so it's less work, and there are fewer pans taking up stove space. I'll slice them, toss them in olive oil, s&p, and a pinch of sugar and roast at 500 for 20-25 minutes, turning once. While they are in the oven, I can get the rest done while mushrooms are cooking.
Tip from a Brit: (A few dashes of) Worcestershire sauce should be as good an addition to a veggie pie as it is traditionally to Shepherd's Pie.
I honesty found this a little underwhelming. The sauce was too runny and lacked oomph - I tried adding a teaspoon of Marmite to increase the umami, which helped but I think that next time I’d use veg bouillon paste rather than miso to increase the flavour in the sauce. As a Brit I’ve much better veggie cottage pies!
I was underwhelmed by this dish. Lots of prep and cook time (with a bunch of dirty dishes) for a meal that tasted good but not great.
I have made this recipe twice now and it is a home run! I made it as written, but halved it, the first time. My husband suggested adding green beans to it the second time, which we did tonight. It's like all of your best Thanksgiving sides in one dish. So good! We do find that halving the recipe works out perfectly for us as we only have a two-person household It gives us a satisfying dinner and leftovers. Keeper!
