Sheet Pan Roasted Ancient Grain Salad with Roasted Root Vegetables

By AislePrompt Test Kitchen · Reviewed by AislePrompt Editorial · ·

A wholesome roasted root vegetable and ancient grain salad tossed with a tangy mustard vinaigrette, perfect for a hearty vegetarian meal. This mediterranean-inspired vegetarian (vegetarian) ready in about 55 minutes pairs medium, cut into wedges red onion, divided olive oil, divided salt for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 380 calories and feeds 4, so it slots cleanly into a weekly meal plan and pairs well with a quick salad or grain on the side. Tap "Plan a meal with the AI" below to drop this recipe into your week and send the ingredients straight to Instacart. Nutrition values are approximate, calculated from USDA FoodData Central (fdc.nal.usda.gov) — verify against ingredient labels for any health-driven dietary plan.

Prep: 15 min Cook: 40 min Serves 4 Mediterranean cuisine 380 cal/serving
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Ingredients

Instructions

  1. Step 1: Preheat oven to 425°F. On a large rimmed baking sheet, toss 3 chopped carrots, 2 chopped parsnips, and 1 chopped red onion with 2 tbsp olive oil, 3/4 tsp salt, and 1/2 tsp black pepper until evenly coated. Spread in a single layer.
  2. Step 2: Roast vegetables for 30-35 minutes, flipping halfway through, until tender and caramelized at the edges.
  3. Step 3: Meanwhile, in a medium saucepan, bring 2 cups water to a boil. Add 1 cup rinsed quinoa, reduce heat to low, cover, and simmer for 15 minutes until water is absorbed. Fluff with a fork and let cool slightly.
  4. Step 4: In a small bowl, whisk together 2 tbsp olive oil, 1 tbsp dijon mustard, 2 tbsp apple cider vinegar, 1 tbsp honey, 3/4 tsp salt, and 1/2 tsp black pepper to make the vinaigrette.
  5. Step 5: In a large bowl, combine the roasted vegetables, cooked quinoa, 1/4 cup chopped fresh parsley, and 1/2 cup toasted chopped walnuts. Pour the vinaigrette over and toss gently to coat.
  6. Step 6: Serve the salad warm or at room temperature as a hearty vegetarian main or side.

Equipment for this recipe

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Frequently asked questions

How long does Sheet Pan Roasted Ancient Grain Salad with Roasted Root Vegetables take to make?

Total time is about 55 minutes (15 min prep + 40 min cook). Most home cooks find this fits comfortably into a weeknight; double the batch on Sunday for two dinners.

How do I store leftover Sheet Pan Roasted Ancient Grain Salad with Roasted Root Vegetables?

Cool to room temperature within 2 hours, then store in an airtight container in the fridge for up to 4 days. Reheat covered in a 350°F oven for 10-12 minutes, or microwave at 70% power in 60-second bursts to keep divided olive oil from drying out.

Can I substitute ingredients in Sheet Pan Roasted Ancient Grain Salad with Roasted Root Vegetables?

Yes — most ingredients in this recipe have flexible swaps. For oil, use any neutral high-smoke-point oil (avocado, grapeseed, refined coconut). For aromatics, dried herbs at ⅓ the volume of fresh work in a pinch. The full ingredient list is shoppable on Instacart so you can see substitutes in real time.

How do I scale Sheet Pan Roasted Ancient Grain Salad with Roasted Root Vegetables for a different number of people?

The recipe is written for 4 servings. Multiply each ingredient by (your serving target / 4). Cook time stays roughly the same up to 2x; for 3-4x batches, switch from a skillet to a sheet pan or stockpot so the food isn't crowded — overcrowding steams instead of browns.

Is Sheet Pan Roasted Ancient Grain Salad with Roasted Root Vegetables vegetarian?

Yes — this recipe is tagged vegetarian based on its ingredient list. Always cross-check labels for packaged ingredients (sauces, broths, condiments) since formulations vary by brand.