One-Pot Roasted Broccolini and Anchovy-Free Umami Noodle Soup
A deeply savory, one-pot Italian-inspired noodle soup that builds umami through roasted shiitake mushrooms, miso paste, and caramelized broccolini. The vegetables cook directly in the broth, infusing it with sweet, funky depth while the thin noodles finish cooking in the same pot. Ready in under 45 minutes with minimal cleanup.
- Prep
- 12 min
- Cook
- 28 min
- Wait
- 5 min
- Total
- 45 min
- Makes
- 4 servings (about 2 cups each)
Steps
Before you start
- Measure out all vegetables and broth before you begin—the cooking happens quickly once you start
- Have a kettle of water boiling separately in case you need to thin the soup after the noodles are added
- Read through the recipe so you understand the roasting and broth-building sequence
Roast mushrooms and broccolini
- Place the large pot over medium-high heat (no oil yet).
- Once it's hot and dry, add the mushroom pieces in a single layer, cut side down.
- Let them sit undisturbed for 4–5 minutes until golden brown and they begin to release liquid.
- Stir, then cook for another 2–3 minutes until they smell deeply savory and edges are caramelized.
- Transfer to a plate.
- Drizzle 1½ tbsp (22 ml) of olive oil into the pot, add the broccolini, season generously with salt and pepper, and toss.
- Cook for 5–6 minutes, stirring occasionally, until the florets are golden at the tips and the stems are tender-crisp.
- Transfer to the plate with the mushrooms.
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Ready when: Mushrooms and broccolini are deeply golden and caramelized at the edges
Tip: Don't stir the mushrooms too early—let them sit so they brown and develop umami flavor. Dry heat draws out moisture and concentrates their savory taste.
Build the umami base
- Add the remaining 1½ tbsp (23 ml) of olive oil to the pot over medium heat.
- Add the minced garlic and red pepper flakes (if using) and cook for 1 minute, stirring constantly, until fragrant.
- Whisk in the miso paste and soy sauce directly into the oil, stirring constantly for about 1 minute until the miso dissolves and the mixture becomes a smooth, fragrant paste.
- This concentrates the umami before adding liquid.
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Ready when: Miso is fully dissolved into a smooth, fragrant paste with no lumps
Tip: Whisking the miso in oil before adding broth ensures it dissolves smoothly and distributes evenly throughout the soup, preventing clumps.
Add broth and return vegetables
- Pour in the vegetable broth slowly while stirring, scraping up any flavorful browned bits from the bottom of the pot.
- Bring to a boil over medium-high heat, then reduce to medium.
- Return the roasted mushrooms and broccolini to the pot and stir gently.
- Simmer for 2 minutes to infuse the vegetables' flavors into the broth.
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Ready when: Broth reaches a gentle rolling boil and is infused with the sweet, earthy aroma of the roasted vegetables
Tip: Scrape the bottom of the pot thoroughly to release fond—those browned bits add deep, concentrated flavor to your broth.
Cook the noodles
- Increase heat to medium-high and bring the broth back to a boil.
- Add the thin pasta noodles and stir well to separate them.
- Cook according to the package instructions (typically 8–10 minutes for linguine or spaghetti), stirring occasionally, until the noodles are tender but still have a slight bite.
- Taste the broth and adjust seasoning with salt and pepper as needed.
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Ready when: Noodles are tender and cooked through, and broth is well-seasoned and flavorful
Tip: Stir the noodles a few times as they cook so they don't stick together. If the soup becomes too thick as the pasta cooks, add a splash of hot water from your kettle.
Finish with lemon and cheese
- Remove from heat.
- Squeeze the juice from both lemon halves into the pot and stir gently.
- Taste and add more salt, pepper, or a squeeze of lemon juice if needed.
- The soup should taste bright and deeply savory.
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Ready when: Soup is well-balanced between savory, salty, and bright acidity
Tip: Add lemon juice at the very end to preserve its bright flavor—don't let it boil away. It cuts through the rich umami and awakens the soup.
Serve and garnish
- Ladle the soup into bowls, ensuring each serving has a good mix of noodles, mushrooms, and broccolini.
- If desired, top each bowl with a pinch of red pepper flakes, a generous grating of Parmigiano-Reggiano cheese, a drizzle of good olive oil, and a crack of fresh black pepper.
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Ready when: Soup is ready to serve when it reaches a comfortable eating temperature
Tip: Serve immediately in warm bowls so the soup stays hot. Parmesan adds a salty, umami boost that complements the miso-based broth beautifully.
Good to know
Tips
- The key to deep umami is roasting the mushrooms dry first—this caramelizes their surface and concentrates their natural glutamates before they join the broth.
- If the soup tastes flat, it needs salt or acid. Add a pinch of salt first, then a squeeze of lemon. Build layers of flavor as you taste.
- White miso (shiro) is milder and slightly sweet; chickpea miso is earthier. Choose based on your preference for a delicate or bold base.
- For a silkier, more luxurious soup, stir in 2–3 tablespoons (30–45 ml) of heavy cream or oat cream at the end, just before serving.
Make ahead
You can roast the mushrooms and broccolini up to 4 hours ahead and store them covered in the refrigerator. Reheat them gently in the pot with the miso base before adding the broth. The soup does not keep well reheated (the noodles become mushy), so make it fresh to order.
Storage & reheating
Refrigerate in an airtight container for up to 2 days. Reheat gently over medium heat on the stovetop with a splash of broth to loosen it—do not microwave, as it can separate. The texture of the noodles will soften with reheating. Freeze the cooled broth (without noodles) in ice cube trays for up to 3 months; thaw and reheat, then add fresh cooked noodles and roasted vegetables when ready to serve.
Substitutions
- white or chickpea miso paste → 2 tbsp (18 g) of nutritional yeast mixed with 1 tbsp (15 ml) of water. This provides umami and a savory depth, though the flavor will be less complex. Mix it into the oil before adding broth.
- shiitake mushrooms, stems removed → cremini or portobello mushrooms (10 oz / 280 g), cleaned and quartered. These are less earthy than shiitake but still add body and savoriness. Roast them the same way for deep browning.
- fresh broccolini → 1 lb (450 g) of broccoli florets or 1 bunch (10 oz / 280 g) of lacinato kale, chopped. Broccoli requires the same roasting time. Kale cooks faster (3–4 minutes); add it after the mushrooms and before building the base.
- thin pasta noodles (linguine, spaghetti, or angel hair) → 8 oz (225 g) of small pasta shapes like ditalini, orzo, or small shells. These will have slightly different cooking times; follow package directions. The soup's body will change slightly depending on pasta shape.
