Low FODMAP Shepherd's Pie

Total time1 hr 25 min

Prep time25 min

Cook time55 min

Few comfort food classics feel as off-limits for sensitive stomachs as a traditional shepherd's pie, loaded as it usually is with onion, garlic, and wheat-thickened gravy. This version solves every one of those problems without sacrificing an ounce of the soul-warming depth you're after. Garlic-infused oil delivers that savory backbone without any of the fructan load, and using only the green tops of scallions keeps the allium flavor bright and gut-friendly. Gluten-free flour thickens the rich lamb and herb gravy just as effectively as the original, and tamari adds a quiet umami punch that makes the whole filling taste like it's been simmering for hours. Carrots, celery, fresh thyme, and rosemary round out the filling with color and fragrance, while the buttery mashed potato topping gets forked into ridges that turn golden and crispy in a hot oven. The result is bubbling, hearty, and deeply satisfying — the kind of dish that makes six people genuinely happy to sit down at the table. It reheats beautifully, too, so leftovers the next day are absolutely worth planning for.

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Ingredients

6 servings

For the mashed potato topping

2 lbs russet potatoes, peeled and cut into 1-inch chunks
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3 tbsp unsalted butter
½ cup milk
Chef's tip
Lactose-free milk works 1:1 in cooking and baking and tastes slightly sweeter.
½ tsp salt
¼ tsp black pepper

For the filling

2 tbsp garlic-infused oil
6 scallions, green tops only, thinly sliced
Ingredient note
The green parts of scallions are low in FODMAPs. Avoid the white bulb which is higher in FODMAPs.
2 medium carrots, peeled and diced
2 stalks celery, diced
Ingredient note
A serving of up to about 1 1/3 stalks of celery is low in FODMAPs. This recipe contains only about 1/3 stalk of celery per serving, making it likely Low FODMAP. If you prefer to always avoid celery, please tap it and change its rating to Red.
1 ½ lbs ground lamb
2 tbsp gluten free flour
1 tbsp tomato paste
Ingredient note
Tomato paste only becomes a problem on a low FODMAP diet in larger amounts; this recipe uses only about 1/2 teaspoon per serving, so it is likely Low FODMAP. If you prefer to always avoid tomato paste, please tap it and change its rating to Red.
1 ½ cups chicken broth
1 tsp fresh thyme leaves
1 tsp fresh rosemary, finely chopped
1 tbsp tamari
½ tsp salt
¼ tsp black pepper

Instructions

1
Preheat the oven to 400°F (205°C). Place the potato chunks in a large saucepan, cover with cold salted water by 1 inch, and bring to a boil over high heat. Reduce to a steady simmer and cook until the potatoes are completely tender and a fork slides through without resistance, about 15–18 minutes. Drain well.
2
Return the drained potatoes to the saucepan over low heat for 1 minute, shaking the pan, until any surface moisture has evaporated. Remove from heat. Add the butter and mash until smooth, then stir in the milk, 1/2 tsp salt, and 1/4 tsp black pepper until the mash is creamy and holds its shape. Set aside.

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