Low-FODMAP & gluten-free Parsnip and Potato Mash with Crisped Sage is a gourmet holiday side dish full of health benefits.
Perfect for any fall feast, this low-FODMAP Parsnip Potato Mash has a beautiful exterior and a hearty interior. The parsnip provides extra vitamins and fiber to this mashed potato dish, while the addition of the low-FODMAP crisped sage provides savory smells, great aesthetics and gorgeous flavor.

Have your kids help you get creative with the swirls on top of this low-FODMAP Parsnip Mash. The final baking stages give it a crusty and rustic look that will impress all your guests this Thanksgiving.

You may also love:
- Low-FODMAP Creamy Thyme Mashed Potatoes
- Low-FODMAP Glazed Carrots
- Low-FODMAP Smashed Salt and Vinegar Potatoes
- Low-FODMAP Sweet Potato Casserole
- Low-FODMAP Balsamic Grilled Vegetables
Or check out over 600 more low-FODMAP recipes on the blog, IBS-friendly!
Be healthy and happy,
Rachel Pauls, MD

Although this recipe has not been lab tested, a single serving should be low-FODMAP based on the ingredients, using FODMAP data at time of posting.
Serves 8
Prep time: 10 min
Cook time: 25-30 min
Bake time: 30 min
Total time: About 70 min entire preparation
Bake 425 F
Equipment: 3 quart oven safe casserole dish
Modified from https://www.rachaelraymag.com
Ingredients
- 3 & 1/2 lbs russet potatoes, peeled and chopped into 1-inch pieces
- 1 & 1/2 lbs parsnips, peeled and sliced into 1/2-inch pieces
- 8 tbsp low-FODMAP vegan spread (such as Earth Balance)
- Can also use butter, if desired
- 4 large fresh bay leaves
- 3/4 cup canned coconut cream, drained of any liquid
- This is NOT the same as ‘cream of coconut’
- Check out my low-FODMAP Grocery shopping blog for tips on purchasing this ingredient if you haven’t before
- 8 oz. lactose-free sour cream
- 1/4 tsp. freshly grated nutmeg
- 1 tbsp scallion tips
- 5 large egg yolks
- 1/4 cup olive oil
- 4 tbsp garlic-infused olive oil (for tips on shopping for infused oils, see my low-FODMAP Pantry and Recipe Swap blog)
- 20 fresh sage leaves
- Flaky sea salt or kosher salt, for sprinkling
- 2 tsp salt for boiling potatoes
Directions
- Preheat the oven to 425 F and place rack in center of oven
- In a large pot, cover the potatoes and parsnips with cold water and bring to a boil over high heat
- Once boiling, add the 2 tsp salt to the water and reduce heat to medium
- Cook the potatoes and parsnips until tender when pierced with a fork, about 15 minutes, then drain
- In the same pot, melt the vegan spread and garlic infused oil with the bay leaves over medium-high heat until the liquid is fragrant and golden, about 5-8 minutes
- Discard the bay leaves
- Add the potatoes, parsnips, coconut cream, lactose-free sour cream and nutmeg to the pot
- Using a potato masher, mash until very smooth
- Stir in the egg yolks, 1 at a time, mixing well between additions
- Season the mashed vegetables generously with salt and pepper and stir in the scallion tips
- Spoon the mashed vegetables into a large 3-qt. oven safe baking dish
- Using the back of a spoon, create swirls or peaks on top for decoration
- Transfer to the oven and bake, rotating the dish halfway through, until the parsnip potato mash is heated through and golden in spots, about 30 minutes
- Meanwhile, in a small saucepan, heat the 1/4 cup olive oil over medium-high
- Working in 2 or 3 batches, fry the sage leaves until crisp, 20 to 30 seconds per batch
- Using a slotted spoon, transfer the sage leaves to a paper towel–lined plate for serving; reserve the sage oil for drizzling
- Sprinkle the oil with flaky sea salt
- Just before serving, drizzle the baked parsnip-potato mash with the sage oil and top with the fried sage leaves
So creamy, and delicious this low-FODMAP Parsnip Potato Mash goes quick…


4 Responses
What’s a good substitute for sour cream? I’ve seen diary free sour cream recipes that call for coconut cream, but wasn’t sure if that would be too much coconut for the recipe.
Thanks for your question. We are not certain about a substitute that would taste the same, but coconut yogurt is low-FODMAP in 125g servings. Good luck!
The canned cream of coconut doesn’t like me. Would lactose free 1/2 and 1/2 work as a substitute? Anything too fatty doesn’t agree with me.
Hi Julie,
Thanks for the question! This blog was written before heavy cream had FODMAP data published.
You could use heavy cream instead.
To be clear, however, the recipe calls for canned COCONUT CREAM and not ‘cream of coconut’. They are different items (cream of coconut is made for Pina Coladas and contains sugar alcohols).
Hope that helps!
If you have issues with lactose, then pretreat your heavy cream with lactase drops (sold at many stores).
Good luck,
Rachel