This creamy, tender Low FODMAP Potato Salad is made with waxy potatoes, fresh green onion tops, and a tangy mayonnaise dressing, ready in just 35 minutes. The best part is tossing the warm, cooked potatoes directly into the dressing, allowing them to soak up every bit of savory flavor without becoming mushy. I love serving this at barbecues because nobody ever guesses it’s made without garlic or onions.
Jump to RecipeWhy This Classic Works
Potato salad is a staple at gatherings, but traditional recipes are often loaded with high-FODMAP ingredients like white onions and garlic powder. I found that swapping the onion for the green tops of scallions (green onions) provides that essential sharp, savory bite without triggering IBS symptoms. It keeps the salad tasting authentic and fresh, so you don’t feel like you’re eating a “diet” version of the original.
Another secret I learned is dressing the potatoes while they are still warm rather than waiting for them to cool completely. When the potatoes are hot, their starch molecules are more open, allowing them to absorb the vinegar and mustard from the dressing deep into the center. This simple timing tweak prevents the bland, dry texture that often plagues homemade potato salads.

Low FODMAP Potato Salad Ingredients
- 2 lbs waxy potatoes: Yukon Gold or baby red potatoes work best as they hold their shape after boiling.
- 3 large eggs: Hard-boiled and chopped for richness and texture.
- 2 stalks celery: Finely diced for a refreshing crunch.
- 1/2 cup green onion tops: Use only the dark green parts (discard the white bulbs) to keep this low FODMAP.
- 3/4 cup real mayonnaise: Check the label to ensure no high fructose corn syrup or onion/garlic powder is added.
- 1 tbsp Dijon mustard: Adds a tangy depth; most plain Dijon is safe.
- 1 tbsp apple cider vinegar: Helps cut through the richness of the mayo.
- 1/2 tsp salt: Plus more for the boiling water.
- 1/4 tsp black pepper: Freshly cracked is best.
- Optional: Fresh dill or paprika for garnish.

How To Make Low FODMAP Potato Salad
- Boil the Potatoes: Scrub the potatoes and cut them into 1-inch chunks (leave skins on for texture if you like). Place them in a large pot, cover with cold water by an inch, and salt generously. Bring to a boil over high heat, then reduce to a simmer and cook for 10-12 minutes until fork-tender.
- Cook the Eggs: While potatoes simmer, place eggs in a separate saucepan and cover with water. Bring to a boil, then cover, remove from heat, and let sit for 10 minutes. Transfer eggs to an ice bath to cool, then peel and chop.
- Whisk the Dressing: In a large mixing bowl, whisk together the mayonnaise, Dijon mustard, apple cider vinegar, salt, and pepper until smooth and creamy.
- Combine Warm: Drain the potatoes well. While they are still warm, transfer them immediately to the large bowl with the dressing. Gently toss to coat the potatoes thoroughly.
- Add Mix-ins: Fold in the chopped hard-boiled eggs, diced celery, and sliced green onion tops. Stir gently so you don’t mash the potatoes.
- Chill and Serve: Cover the bowl and refrigerate for at least 1 hour to let the flavors meld. Sprinkle with paprika or fresh dill before serving.

Recipe Tips
- Check your mayo: Most real mayonnaise (like Hellmann’s/Best Foods) is low FODMAP, but avoid “light” or flavored versions that often contain high fructose corn syrup or garlic flavoring.
- Don’t overcook potatoes: Watch the potatoes closely; if they are too soft, they will turn into mashed potatoes when you toss them with the dressing.
- Cooling matters: While mixing warm is key for flavor absorption, chilling the salad afterwards is essential for the texture to firm up and for the dressing to thicken.
- Pickle caution: If you want to add pickles, choose cornichons or dill pickles that do not list garlic or onion in the ingredients (or just use cucumber for crunch).
What To Serve With Low FODMAP Potato Salad
This salad is the perfect side for grilled meats like steak, chicken thighs, or hamburgers served on gluten-free buns. It also pairs beautifully with simple roasted salmon or a low FODMAP pulled pork, balancing the rich meats with its creamy, tangy flavor.
How To Store
Store leftovers in an airtight container in the refrigerator for up to 3 to 4 days. This salad actually tastes better the next day as the flavors continue to develop. Do not freeze this potato salad, as the mayonnaise will separate and the potatoes will become grainy upon thawing.

FAQs
- Is mayonnaise low FODMAP? Yes, most standard mayonnaise made from oil, eggs, and vinegar is low FODMAP, but always check the label for hidden onion or garlic powder.
- Can I use Greek yogurt instead? You can swap half the mayo for lactose-free Greek yogurt if you want a lighter version with more protein, but the flavor will be tangier.
- Why can I only use the green part of the onion? The white bulb of the green onion contains high amounts of fructans (a FODMAP), while the green leaves are low in FODMAPs and safe to eat.
- Can I make this ahead of time? Absolutely, making it a day in advance allows the flavors to blend perfectly, making it ideal for meal prep or parties.
Nutrition
- Calories: 240
- Total Fat: 14g
- Saturated Fat: 2.5g
- Cholesterol: 105mg
- Sodium: 320mg
- Total Carbohydrate: 24g
- Protein: 5g
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Low FODMAP Potato Salad
6
servings15
minutes20
minutes35
minutesLow FODMAP Potato Salad features creamy, tender potatoes tossed in a tangy mustard dressing with crunchy celery and savory green onion tops. This classic side dish uses specific ingredients like waxy potatoes and garlic-free mayo to stay tummy-friendly. Ready in 35 minutes, it’s the perfect easy side for your next lunch or barbecue.
Ingredients
2 lbs waxy potatoes (Yukon Gold or Red)
3 large eggs, hard-boiled
2 stalks celery, finely chopped
1/2 cup green onion tops (green parts only), sliced
3/4 cup real mayonnaise
1 tbsp Dijon mustard
1 tbsp apple cider vinegar
1/2 tsp salt
1/4 tsp black pepper
Optional: Paprika or fresh dill for garnish
Directions
- Boil the Potatoes: Scrub and cube potatoes. Boil in salted water for 10-12 minutes until tender.
- Cook the Eggs: Hard boil eggs, cool in ice water, peel, and chop.
- Whisk the Dressing: In a large bowl, mix mayonnaise, mustard, vinegar, salt, and pepper.
- Combine Warm: Drain potatoes and toss them immediately into the dressing while still warm.
- Add Mix-ins: Fold in eggs, celery, and green onion tops gently.
- Chill and Serve: Refrigerate for at least 1 hour before serving.
