onepot lentil and roasted root vegetable soup for winter nights

By Pam 2026-01-02

Storage Tips

Refrigerator: Cool completely, transfer to airtight containers, and refrigerate up to 5 days. The soup thickens as the lentils keep drinking; thin with water or broth when reheating.

Freezer: Ladle into freezer-safe jars or silicone bags, leaving 1 inch headspace. Freeze up to 3 months. Thaw overnight in the fridge or use the microwave’s defrost setting.

Make-ahead roast: Roast the vegetables up to 3 days ahead; store cold and add during the last 5 minutes of simmering to preserve their shape.

Frequently Asked Questions

Can I use red lentils?

Red lentils cook in 10 minutes and dissolve into a creamy base. If that’s your vibe, use them, but you’ll lose the texture contrast. Reduce liquid by 1 cup and simmer 8–10 minutes only.

I hate kale—what else works?

Swap in baby spinach, Swiss chard, or shredded green cabbage. If using spinach, stir it in off-heat; the residual heat wilts it instantly without turning army-green.

Can I double the recipe?

Absolutely—use a 6-quart pot and two sheet pans so the vegetables roast, not steam. Cooking time remains the same; just stir more often to prevent sticking.

Is this soup gluten-free?

Yes, as long as your miso and stock are certified gluten-free. Some misos contain barley; check the label or substitute tamari.

How do I fix over-salted soup?

Drop in a peeled potato and simmer 10 minutes; it will absorb excess salt. Remove the potato before serving—or mash it with a splash of cream and call it cook’s treat.

Can I make this in a slow cooker?

Roast the vegetables separately for flavor, then add them with everything except the greens to a slow cooker. Cook on LOW 6 hours or HIGH 3 hours; stir in greens last 10 minutes.

onepot lentil and roasted root vegetable soup for winter nights

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Prep—

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Serves—

Ingredients

3 medium carrots, peeled and cubed
2 parsnips, peeled and cubed
1 small celeriac, peeled and cubed
1 medium red onion, sliced
3 tbsp olive oil, divided
1 tsp kosher salt, plus more to taste
½ tsp black pepper
Pinch crushed red-pepper flakes
2 shallots, minced
2 garlic cloves, minced
1 tbsp minced fresh ginger
1 tsp ground coriander
1 cup French green lentils, rinsed
6 cups low-sodium vegetable stock
1 bay leaf
1 strip orange peel
1 tsp white miso
3 cups chopped kale, stems removed
2 tsp balsamic vinegar

Instructions

Roast vegetables: Preheat oven to 425 °F. Toss carrots, parsnips, celeriac, and red onion with 2 tbsp oil, salt, pepper, and chili flakes on a rimmed sheet. Roast 25–30 min until browned, then drizzle with balsamic.
Sauté aromatics: In a Dutch oven, heat remaining 1 tbsp oil. Cook shallots 2 min, add garlic, ginger, and coriander; bloom 30 sec.
Simmer lentils: Add lentils, stock, bay leaf, and orange peel. Bring to a simmer, partly cover, and cook 25–30 min until lentils are tender.
Finish soup: Remove bay and orange. Stir miso into a ladle of broth, return to pot. Add kale; simmer 2 min. Fold in roasted vegetables.
Serve: Ladle into bowls, drizzle with olive oil, and top with lemon zest if desired.