Slow-Cooked Vegetable and White Bean Soup

By AislePrompt Test Kitchen · Reviewed by AislePrompt Editorial · ·

A deeply flavored soup simmered slowly with seasonal vegetables and creamy white beans for a comforting weeknight meal. This american-inspired slow cooker (vegetarian, gluten-free) ready in about 380 minutes pairs olive oil, large, diced onion, diced carrots for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 250 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.

★ 4.2 (9 ratings) Prep: 20 min Cook: 360 min Serves 6 American cuisine 250 cal/serving
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Ingredients

Instructions

  1. Step 1: Heat 2 tbsp olive oil in a large pot over medium heat. Add 1 large diced onion, 2 diced carrots, and 2 diced celery stalks. Cook for 8 minutes until softened, stirring occasionally.
  2. Step 2: Add 3 minced garlic cloves and cook for 1 minute until fragrant.
  3. Step 3: Stir in 1 (15 oz) can drained and rinsed white beans, 1 (14.5 oz) can diced tomatoes, 4 cups vegetable broth, and 1 tsp dried thyme. Bring to a gentle simmer.
  4. Step 4: Transfer to a slow cooker, cover, and cook on low for 6 hours.
  5. Step 5: Stir in 1 cup chopped kale and cook uncovered for 30 minutes until tender.
  6. Step 6: Season with salt and pepper to taste before serving.

Frequently asked questions

How long does Slow-Cooked Vegetable and White Bean Soup take to make?

Total time is about 380 minutes (20 min prep + 360 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 Slow-Cooked Vegetable and White Bean 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 olive oil from drying out.

Can I substitute ingredients in Slow-Cooked Vegetable and White Bean 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 Slow-Cooked Vegetable and White Bean 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.

Is Slow-Cooked Vegetable and White Bean Soup vegetarian?

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

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