
Spinach Salad with Roasted Sweet Potato and Sunflower Seeds
A vibrant, satisfying green salad built on tender baby spinach with cubes of caramelized roasted sweet potato, toasted sunflower seeds, and thin red onion slices. A warm honey-mustard vinaigrette brings everything together with just enough acidity and warmth to complement the natural sweetness of the roasted potato. This salad works equally well as a side dish or a light main course.
- Prep
- 15 min
- Cook
- 25 min
- Wait
- 5 min
- Total
- 45 min
- Makes
- 4 servings (about 2½ cups per serving)
Steps
Before you start
- Preheat your oven to 425°F (220°C)
- Line a baking sheet with parchment paper
- Bring out any chilled ingredients 10 minutes before assembly so they reach room temperature
Toss and season sweet potato
- On the prepared baking sheet, combine the cubed sweet potato with 2 tbsp olive oil, ½ tsp kosher salt, ¼ tsp black pepper, and ½ tsp smoked paprika (if using).
- Toss until every piece is evenly coated.
- Spread in a single layer.
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Ready when: all pieces coated evenly
Tip: Don't skip the paprika—it adds subtle depth and a hint of smokiness that complements the natural sweetness of the potato.
Roast sweet potato cubesOven 425°F / 220°C
- Place the baking sheet in the preheated 425°F (220°C) oven.
- Roast for 20–22 minutes, stirring halfway through at the 10-minute mark.
- The cubes are done when the edges are caramelized (slightly darkened and crispy) and the centers are tender when pierced with a fork.
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Ready when: edges are caramelized and golden, centers are fork-tender
Tip: Stirring halfway prevents uneven cooking and helps achieve even caramelization on all sides.
Toast sunflower seeds
- While the sweet potato roasts, place the sunflower seeds in a dry skillet over medium heat.
- Toast, stirring frequently, for 3–4 minutes until fragrant and lightly browned.
- Transfer to a plate to cool slightly.
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Ready when: seeds are fragrant and light golden brown
Tip: Toasting brings out the seeds' nutty flavor and makes them crispier. Keep your ear tuned—they toast quickly and can burn if left unattended.
Make the vinaigrette
- In a small bowl, whisk together 1 tbsp Dijon mustard, 1 tbsp honey, and 2 tbsp red wine vinegar until combined.
- Slowly drizzle in 3 tbsp extra-virgin olive oil while whisking constantly to emulsify.
- Season with ¼ tsp kosher salt and black pepper to taste.
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Ready when: dressing is smooth, slightly thickened, and unified in color
Tip: Whisking in the oil slowly creates an emulsion that holds the vinaigrette together. If it breaks or separates, whisk in a teaspoon of warm water.
Assemble the salad
- Place the rinsed and dried baby spinach in a large mixing bowl.
- Add the thin-sliced red onion.
- Drizzle with about three-quarters of the vinaigrette and toss gently until the spinach is lightly coated but not soaked.
- The spinach should still look fresh and vibrant, not wilted.
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Ready when: spinach is lightly coated, still crisp and bright green
Tip: Don't over-dress—you want the spinach to stay tender and crisp. Reserve extra dressing on the side for anyone who wants more.
Top and serve
- Divide the dressed spinach among four serving plates or bowls.
- Top each portion with a generous handful of the roasted sweet potato cubes and a sprinkle of the toasted sunflower seeds.
- Drizzle any remaining vinaigrette over the top.
- Serve immediately while the sweet potato is still warm.
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Ready when: salad is composed and ready to eat
Tip: The warmth of the roasted sweet potato gently wilts the spinach just enough without making it mushy—this contrast is what makes the salad special.
Good to know
Tips
- To prevent the spinach from wilting before service, keep it separate from the dressing until just before plating. The warm sweet potato will gently soften the leaves without turning them mushy.
- If you prefer a creamier dressing, whisk in 1 tablespoon of Greek yogurt or crème fraîche into the vinaigrette. This also adds body and makes the dressing cling better to the greens.
- For extra protein and richness, top each serving with a soft-boiled egg, crumbled feta cheese, or grilled chicken breast. The warm roasted potato and creamy egg yolk pair beautifully.
- Slice the red onion as thin as possible—use a mandoline or a very sharp knife—to keep the bite and color vibrant without overwhelming the tender spinach.
Make ahead
The roasted sweet potato and toasted sunflower seeds can be prepared up to 8 hours ahead and stored separately in airtight containers. The vinaigrette can be made 1 day ahead and refrigerated. The spinach should be rinsed and dried just before assembly. Toss the salad no more than 5 minutes before serving to keep the spinach crisp.
Storage & reheating
Store leftover roasted sweet potato and seeds separately from the dressed salad. The sweet potato keeps in an airtight container in the refrigerator for up to 4 days and can be reheated gently in a 350°F oven for 5 minutes. Undressed spinach and red onion last 2–3 days refrigerated. Do not store a fully dressed salad, as the spinach will wilt.
Substitutions
- Red wine vinegar → Apple cider vinegar or white wine vinegar. Both offer similar acidity and brightness. Use the same amount. Apple cider is slightly sweeter and fruitier.
- Raw sunflower seeds → Pumpkin seeds (pepitas), sliced almonds, or walnuts. Any will add crunch and nutritional depth. Use the same volume (½ cup). Toast them the same way if raw.
- Smoked paprika → Regular paprika, ground cumin, or ¼ tsp cayenne pepper. Paprika adds color; cumin adds earthiness; cayenne adds heat. All are optional but recommended.
- Red onion → Thinly sliced white or yellow onion, or shallot. Red onion's color and mild bite are ideal, but others work. Shallots are sweeter and more delicate.
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- Meal
- Lunch
- Main ingredient
- SpinachSweet Potatoes
- Method
- Oven





