This salad is roasted sweet potatoes and charred corn on a bed of peppery arugula, finished with a lime-cumin vinaigrette and salty cotija. It comes together in under 50 minutes and works as a weeknight side or a sturdy lunch that holds up in a container. The roasting does the heavy lifting โ you get caramelized edges and real depth without much effort.
The technique that matters
Getting the sweet potatoes and corn to actually brown โ not steam โ is the whole game here. Two things make that happen: a hot oven (425ยฐF, no lower) and a single layer on the pan with space between pieces. Crowding traps moisture and you end up with soft, pale vegetables instead of caramelized ones. If your pan is small, use two pans rather than pile everything on one. The corn goes on at the halfway point because it needs less time; add it too early and the kernels shrivel before the sweet potatoes are done. Cut the sweet potatoes as close to ยพ-inch as you can โ uneven chunks mean some burn while others stay raw in the center.
Ingredient notes
- Cotija: Firm, salty, and crumbles cleanly. Feta is the easiest swap and works well. Queso fresco is milder and softer but fine. Leave it out entirely and the salad is vegan โ just swap the honey in the dressing for maple syrup or agave.
- Pepitas: Buy them raw and toast them yourself in a dry skillet for 3โ4 minutes โ theyโre cheaper that way and taste better. Sunflower seeds or roughly chopped walnuts do the same job if thatโs what you have.
- Fresh corn: Three ears is the right amount for the pan. Frozen corn kernels (thawed and patted very dry) work when fresh isnโt available โ spread them in a single layer and theyโll still get some color.
- Baby arugula: Any peppery green works โ watercress, baby spinach, or a spring mix. Spinach is milder but holds up better if the salad sits for a bit.
- Apple cider vinegar: Marked optional in the recipe. Skip it if you donโt have it; the lime juice carries enough acidity on its own.
Keeping it fresh
Store the roasted vegetables and the greens separately โ combined, the arugula wilts within a few hours. The roasted sweet potatoes and corn keep well in the fridge for up to 4 days. The vinaigrette lasts a week in a sealed jar; shake it before using because the olive oil will separate. Dress it at the table โ a pre-dressed salad goes limp fast. If youโre packing this for lunch, put the dressing in a small container on the side and add the pepitas and cotija right before eating so they stay crisp and donโt get soggy. The scallions and cilantro can be prepped and stored together in a damp paper towel in the fridge for up to 2 days.
Troubleshooting
- The dressing tastes flat: Taste it before you pour. If itโs dull, it usually needs more salt or another squeeze of lime โ not more oil. Add both in small amounts and taste again.
- Sweet potatoes are browning on the outside but still hard inside: Your cubes were too large or the oven wasnโt fully preheated. Cut them smaller next time. Mid-roast, you can also tent the pan loosely with foil for 5 minutes to steam them through, then remove the foil to re-crisp the edges.
- The salad is watery at the bottom of the bowl: The vegetables werenโt dry enough before roasting, or the corn was still wet. Pat everything dry before it goes on the pan. Frozen corn especially needs a good press with a kitchen towel.
- The vinaigrette wonโt emulsify and stays oily: The Dijon is the emulsifier โ make sure itโs fully whisked in before you add the olive oil. Add the oil slowly in a thin stream while whisking, not all at once.
- The arugula is overwhelmingly bitter: Toss it with a small pinch of salt and a few drops of the dressing a minute before serving โ it softens the bite. Baby spinach mixed in at a 50/50 ratio also balances it out without losing the peppery contrast.
Roasted Corn and Sweet Potato Salad
Equipment
- Rimmed sheet pan
- Parchment paper
- Chef's Knife
- Cutting board
- Large mixing bowl
- Small bowl
- Whisk
- Tongs
- Microplane or fine grater
- Measuring spoons
Ingredients
For the Salad:
- 1.5 lb sweet potatoes, peeled and cut into 3/4-inch cubes
- 0.5 medium red onion, cut into thin wedges
- 2 tbsp extra-virgin olive oil for roasting vegetables
- 1 tsp kosher salt for roasting vegetables
- 0.5 tsp freshly ground black pepper for roasting vegetables
- 1 tsp smoked paprika
- 0.5 tsp ground cumin for roasting vegetables
- 3 ears fresh corn, husked
For the LimeโCumin Vinaigrette:
- 1 tsp lime zest from about 2 limes
- 3 tbsp fresh lime juice
- 1 tsp Dijon mustard
- 1.5 tsp honey
- 1 tsp apple cider vinegar optional for extra brightness
- 1 tsp ground cumin for dressing
- 0.25 tsp kosher salt for dressing
- 0.25 tsp freshly ground black pepper for dressing
- 3 tbsp extra-virgin olive oil for dressing
- 1 clove garlic, finely grated
To Finish:
- 5 oz baby arugula (or mixed baby greens)
- 3 pieces scallions, thinly sliced
- 0.25 cup fresh cilantro, chopped
- 0.25 cup toasted pepitas (pumpkin seeds)
- 0.5 cup cotija or feta, crumbled optional
Instructions
- Preheat the Oven: Set a rack in the middle and heat to 425ยฐF / 220ยฐC. Line a rimmed sheet pan with parchment for easier cleanup.
- Season the Vegetables: In a large bowl, toss the sweet potatoes and red onion with 2 tbsp olive oil, 1 tsp kosher salt, 1/2 tsp black pepper, 1 tsp smoked paprika, and 1/2 tsp ground cumin until evenly coated.
- Start Roasting: Spread the vegetables in a single layer on the prepared pan. Roast for 15 minutes at 425ยฐF / 220ยฐC until the undersides begin to caramelize.
- Add the Corn: Scoot the vegetables to make space and lay the 3 ears of corn directly on the pan (they can rest on top of the veg). Return to the oven and roast 12 minutes more, rotating the corn halfway, until the kernels are lightly charred and the sweet potatoes are tender.
- Make the Vinaigrette: While the pan roasts, whisk lime zest, lime juice, Dijon, honey, apple cider vinegar, 1 tsp ground cumin, 1/4 tsp kosher salt, and 1/4 tsp pepper in a small bowl. Slowly stream in 3 tbsp olive oil, whisking until emulsified and slightly thickened.
- Cut the Corn: Transfer the roasted corn to a cutting board and let cool 2 minutes. Stand each ear upright and slice off the kernels in planks.
- Warm-Toss and Rest: Return the kernels to the sheet pan with the hot vegetables and gently toss so a little steam softens the onions. Let sit 5 minutes so the heat mellows and wonโt wilt the greens aggressively.
- Assemble the Salad: In a large mixing bowl, add the arugula, scallions, and cilantro. Pour over about two-thirds of the vinaigrette and toss to coat. Fold in the warm roasted vegetables and pepitas, then taste and add more dressing and salt as needed.
- Finish and Serve: Sprinkle with crumbled cotija. Serve slightly warm or at room temperature for peak aroma and texture.
Notes
Chef's Tips:
- Grill option: Grill corn on the cob over medium-high heat (about 450ยฐF / 230ยฐC) until charred in spots, then roast the sweet potatoes and onion separately in the oven.
- Use frozen corn: Swap 2 1/2 cups frozen corn (no need to thaw). Add it to the pan for the final 10 minutes of roasting.
- Keep greens perky: Toss arugula with dressing first so the leaves are seasoned, then fold in warm vegetables; this preserves volume without sogginess.
- Crunch booster: If your pepitas arent toasted, bake them at 350ยฐF / 175ยฐC for 6 minutes until fragrant; cool before adding.
- Make ahead: Roast veg and whisk dressing up to 2 days in advance; keep chilled separately. Rewarm vegetables just until lukewarm before assembling.
- Vegan swap: Replace honey with maple syrup and omit cheese.
- Cheese choices: Cotija brings a savory, milky salinity; feta or a young goat cheese also work beautifully.
Nutrition
Your questions, answered
Can I use canned corn instead of fresh ears?
Yes, but drain and dry it very thoroughly first. Canned corn has a lot of moisture; if it goes on the pan wet it will steam instead of roast and you wonโt get any color or char.
Can I make this ahead for a party?
Roast the vegetables and make the dressing up to 2 days ahead, then keep everything separate until youโre ready to serve. Assemble and dress just before putting it on the table so the greens stay crisp and the pepitas donโt go soft.
I donโt have smoked paprika โ can I leave it out?
Yes. Regular sweet paprika works fine and keeps the color. If you have chipotle powder, use half the amount โ itโs smokier and hotter, so a little goes a long way.
How do I make this vegan?
Swap the honey in the vinaigrette for maple syrup or agave in equal amounts, and skip the cotija or replace it with a sprinkle of toasted sunflower seeds for extra texture. Everything else in the recipe is already plant-based.
My sweet potatoes keep sticking to the parchment โ whatโs going wrong?
Theyโre sticking because theyโre still releasing moisture and havenโt formed a crust yet. Donโt try to move them before the 15-minute mark; once theyโre properly caramelized on the bottom theyโll release cleanly. Forcing them early tears the surface and theyโll stick worse.
Can I use a different cheese if I canโt find cotija or feta?
Queso fresco, aged ricotta salata, or even a sharp shredded Parmesan all work. You want something salty and crumbly rather than melty โ a soft fresh mozzarella, for example, would just disappear into the salad.