Herb-Roasted Root Vegetable Medley with Lemon Vinaigrette

By AislePrompt Test Kitchen · Reviewed by AislePrompt Editorial · Published 2026-04-23 · Updated 2026-04-23

A vibrant celebration of seasonal vegetables roasted to caramelized perfection and tossed in a bright, herb-infused dressing, embodying the diversity of American culinary traditions. This american-inspired vegetarian ready in about 45 minutes pairs olive oil, dried thyme, salt for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 280 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.

Ingredients

• 1 large, peeled and diced into 1-inch cubes sweet potato
• 2 medium, peeled and diced into 1-inch cubes carrots
• 1 large, peeled and diced into 1-inch cubes beet
• 1 medium, peeled and diced into 1-inch cubes parsnip
• 2 tbsp olive oil
• 1 tsp dried thyme
• 1/2 tsp salt
• 1/4 tsp black pepper
• 1 cup, cooked quinoa
• 3 tbsp, chopped fresh dill
• 2 tbsp lemon juice

Instructions

1. Step 1: Preheat oven to 400°F (200°C). In a large bowl, combine 1 large peeled and diced sweet potato (1-inch cubes), 2 medium peeled and diced carrots (1-inch cubes), 1 large peeled and diced beet (1-inch cubes), and 1 medium peeled and diced parsnip (1-inch cubes). Drizzle with 2 tbsp olive oil, then add 1 tsp dried thyme, 1/2 tsp salt, and 1/4 tsp black pepper. Toss until evenly coated.
2. Step 2: Spread vegetables in a single layer on a parchment-lined baking sheet. Roast for 25-30 minutes, stirring once after 15 minutes, until edges are golden and tender when pierced with a fork.
3. Step 3: While vegetables roast, whisk together 2 tbsp lemon juice, 3 tbsp chopped fresh dill, and 1 tbsp olive oil in a small bowl until emulsified.
4. Step 4: Transfer roasted vegetables to a serving bowl. Add 1 cup cooked quinoa and the lemon-dill dressing, then gently toss until coated. Serve warm.