Roasted Potato Salad with Herb Vinaigrette Recipe: Shopping List, Portions Per Person + Picnic Packing Tips

Roasted potato salad doesn’t mess around. It’s hearty, crisps up in the oven, and laughs at sad, mayo-drenched picnic sides. This version brings a punchy herb vinaigrette that hugs every golden edge. You get flavor, texture, and a dish that still tastes great after a day in the cooler. Sold? Let’s make it happen.

Why Roasted Potato Salad Beats the Classic

Roasting adds caramelized edges and a little chew—basically flavor insurance. The herb vinaigrette keeps things bright and zippy instead of heavy. You can serve it warm, room temp, or cold and it stays delicious. And FYI, it travels like a champ.

Shopping List: Everything You Need

You’ll feed 6 as a side with this list. Double it for a party, halve it for a cozy dinner. I included options so you can customize without panic-scrolling the aisle.

Potatoes and Veg

• 2.5–3 lb small waxy potatoes (Yukon gold, baby reds, or fingerlings)
• 1 small red onion (or 3–4 scallions if you want milder)
• 1 small bunch celery (3 ribs), thinly sliced
• 1 cup cherry tomatoes (optional, halved)
• 1 small cucumber (optional, seeded and diced)

Herb Vinaigrette

• 1/3 cup extra-virgin olive oil
• 3 tbsp red wine vinegar (or sherry vinegar)
• 2 tsp Dijon mustard
• 1 tsp honey (or maple syrup)
• 2 small garlic cloves, grated
• 1 cup mixed fresh herbs (parsley + chives + dill + basil; use what you have)
• 1 lemon (zest + 1 tbsp juice)
• Salt and black pepper
• Red pepper flakes (optional, but recommended)

Crunch + Extras (Choose Your Adventure)

• Capers (2 tbsp, drained) or chopped cornichons
• Toasted nuts (1/3 cup almonds, walnuts, or pine nuts)
• Crumbled feta or goat cheese (1/2 cup, optional)
• Arugula (2 cups, to toss in right before serving, optional)

Portions per Person (Plan Like a Picnic Pro)

You’re feeding humans, not bottomless pits… though some will try. Here’s a simple guide.

• As a side: 1 to 1.25 cups per person (about 6–8 oz cooked)
• As a main (light meal): 2 cups per person (about 12–14 oz cooked), especially if you add protein
• For a potluck: Assume people take less but return for seconds. Plan for 1 cup per person and add a 15% buffer.

Scaling Cheat Sheet

• 4 people (side): 1.5–2 lb potatoes
• 6 people (side): 2.5–3 lb potatoes
• 10 people (side): 4.5–5 lb potatoes

Roasted Potato Salad with Herb Vinaigrette: Step-by-Step

Flavor loves hot pans and sharp knives. You’ve got both. Let’s go.

1) Roast the potatoes

1. Heat oven to 425°F / 220°C. Line two sheet pans for max crisp.
2. Halve or quarter potatoes so they’re all roughly the same size. Toss with 2–3 tbsp olive oil, 1.5 tsp kosher salt, and fresh pepper.
3. Spread in a single layer, cut-side down. Roast 25–35 minutes until golden and crisp at the edges. Don’t crowd them—potatoes need personal space, IMO.

2) Make the herb vinaigrette

1. Whisk: 1/3 cup olive oil, 3 tbsp vinegar, 2 tsp Dijon, 1 tsp honey, garlic, lemon zest + 1 tbsp juice, a pinch of red pepper flakes, salt, and pepper.
2. Chop herbs finely. Stir into vinaigrette. Taste and adjust—more acid if it feels flat, more salt if it tastes shy.

3) Assemble

1. Thinly slice red onion. Rinse under cold water 10–20 seconds to tame the bite; pat dry.
2. Add celery, onion, tomatoes/cucumber (if using), and capers/cornichons to a large bowl.
3. While potatoes are still warm, toss them with half the vinaigrette. Warm potatoes soak up flavor like pros.
4. Let sit 5–10 minutes, then add remaining vinaigrette to taste. Fold in nuts and cheese if using. Adjust salt, pepper, and acid.
5. If adding arugula, toss it in right before serving so it stays perky.

Flavor Tweaks You’ll Brag About

You can keep it classic or flex a little. Either way, you win.

• Smoky: Add 1 tsp smoked paprika to the potatoes before roasting.
• Briny: Double the capers and finish with a splash of olive brine.
• Creamy-but-not-mayo: Mash 2 tbsp soft goat cheese into the vinaigrette.
• Protein boost: Add flaked canned tuna, crispy bacon, grilled chicken, or jammy eggs.
• Extra-herby: Swap in tarragon and chervil for a French bistro vibe.

Picnic Packing Tips (a.k.a. Don’t Let It Get Soggy)

You did the work—now keep it fabulous outdoors. Sun and salads don’t always vibe, but this one can handle it with a few moves.

Chill and Layer Smart

• Cool before closing: Let the salad cool to room temp before lidding so condensation doesn’t water it down.
• Hold back the greens: If using arugula, pack it separately. Toss right before serving.
• Reserve some dressing: Pack an extra 2–3 tbsp in a small jar. Refresh the salad just before eating.

Containers and Transport

• Shallow, wide container: Prevents squashing and lets steam escape if it’s still a tad warm.
• Ice packs on the bottom: Keep it under 40°F for food safety if you’re out more than 2 hours. FYI: shade helps.
• Bring a big spoon and tongs: Potatoes appreciate gentle handling.

Make-Ahead Timeline

• 1 day ahead: Roast potatoes, make vinaigrette, chop sturdy veg (celery, onion). Store separately.
• Morning of: Toss warmish potatoes with half the dressing; add rest before serving.
• Right before eating: Add arugula/greens and nuts so they stay crisp.

Serving Notes and Pairings

This salad plays well with others. Bring it to a barbecue or make it the star of a lazy dinner.

• Grill buddies: Sausages, salmon, or lemony chicken skewers.
• Veg mains: Grilled portobellos, marinated tofu, or a big platter of roasted peppers and zucchini.
• Beverages: Crisp white wine, a radler, or iced tea with too much lemon (the good kind of too much).

FAQ

Can I use regular russet potatoes?

You can, but waxy potatoes hold their shape better and crisp more evenly. If you only have russets, cut them larger, toss gently, and roast until deeply golden. They’ll be more rustic, which isn’t a crime.

How long does this keep?

Up to 4 days in the fridge. The herbs will mellow, but the flavor stays great. Add a splash of vinegar and a drizzle of oil to wake it up on day two or three.

Can I make it vegan and gluten-free?

It’s already gluten-free. For vegan, skip dairy cheese and use maple instead of honey. Add toasted walnuts or a spoon of capers for that salty pop you might miss from cheese.

What if my potatoes won’t crisp?

Crowding is the usual suspect. Use two pans, keep them in a single layer, and roast at 425°F. Dry the potatoes after rinsing, and don’t be shy with oil. Also, place cut-sides down—direct contact equals browning.

Do I need all those herbs?

Nope. Use what you have. Parsley + chives deliver freshness, dill adds deli-salad nostalgia, basil brings sweetness. Even one herb still tastes great—just bump the lemon zest to compensate.

Can I serve it warm?

Absolutely. Toss while warm and serve after 5–10 minutes. The dressing absorbs better and the flavors pop. Warm potato salad = underrated bliss, IMO.

Conclusion

Roasted potato salad with herb vinaigrette checks all the boxes: crispy, bright, make-ahead friendly, and unfussy to pack. It holds up at picnics, charms at potlucks, and moonlights as a weeknight dinner. Keep the dressing punchy, the potatoes well-roasted, and the add-ins flexible. Your future self—eating this cold from the fridge—will say thanks.