Rustic Festus-Style Harvest Root Vegetable Soup

By , Test Kitchen Director · Reviewed by AislePrompt Editorial · ·

A hearty and warming soup featuring a medley of roasted root vegetables slow-simmered with herbs for a comforting regional taste. This American-inspired soup recipe, ready in about 60 minutes, pairs carrots, peeled and diced, parsnips, peeled and diced, sweet potato, peeled and diced for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 180 calories and feeds 6, 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: 45 min Serves 6 American cuisine 180 cal/serving
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Ingredients

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Instructions

  1. Step 1: Preheat oven to 425°F. Toss 2 cups diced carrots, 1 cup diced parsnips, and 1 cup diced sweet potato with 3 tbsp olive oil, 1 tsp chopped rosemary, 1 tsp chopped thyme, 1 tsp salt, and 1/2 tsp black pepper; spread on a baking sheet and roast for 25 minutes until tender and caramelized.
  2. Step 2: While veggies roast, heat a large pot over medium heat and add 1 medium chopped yellow onion and 3 minced garlic cloves; sauté for 5 minutes until translucent and fragrant.
  3. Step 3: Add the roasted vegetables to the pot along with 4 cups vegetable broth and bring to a simmer; cook uncovered for 15 minutes to blend flavors.
  4. Step 4: Stir in 1 tbsp apple cider vinegar, adjust seasoning with additional salt and pepper if needed, then ladle into bowls and garnish with 2 tbsp chopped fresh parsley before serving warm.

Frequently asked questions

How long does Rustic Festus-Style Harvest Root Vegetable Soup take to make?

Total time is about 60 minutes (15 min prep + 45 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 Rustic Festus-Style Harvest Root Vegetable Soup?

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 carrots, peeled and diced from drying out.

Can I substitute ingredients in Rustic Festus-Style Harvest Root Vegetable Soup?

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 Rustic Festus-Style Harvest Root Vegetable Soup for a different number of people?

The recipe is written for 6 servings. Multiply each ingredient by (your serving target / 6). 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.

What goes well with Rustic Festus-Style Harvest Root Vegetable Soup?

American soups like this pair well with a simple grain (rice, couscous, or crusty bread), a quick salad with acid (lemon vinaigrette, pickled onions), and a pan sauce or yogurt-based dip. Tap "Plan a meal with the AI" to get specific side suggestions.