Recipes › Easy comfort dinners› Brown butter mushroom one-pot pasta with white beans
Easy comfort dinners · Easy · Serves 4

Brown butter mushroom one-pot pasta with white beans

A vegetarian one-pot pasta built on brown butter, deeply browned mushrooms, white beans, and parmesan. Thirty minutes, one Dutch oven, the kind of dinner that tastes like a long Sunday.

Anna Lind Harper
by Anna Lind Harper
Tested twice · Published 2026-06-07
A wide cream-speckled stoneware bowl of brown butter mushroom pasta on a white marble counter: short pasta in a glossy nutty brown sauce, deeply browned cremini and shiitake mushrooms distributed throughout, white cannellini beans folded in, a snow of freshly grated parmesan, scattered fresh thyme leaves, cracked black pepper, a small drizzle of olive oil pooling on the surface. Beside the bowl: a small wooden cutting board with halved cremini mushrooms, a sprig of fresh thyme, a wooden pepper mill, a folded striped cream-and-blue linen tea towel, a small dish of more grated parmesan. Soft late-afternoon kitchen light.
Prep
10 min
Cook
20 min
Serves
4
Difficulty
easy

This is the vegetarian one-pot pasta I make when I want something that feels like it took longer than thirty minutes. The whole dish runs on brown butter (the only step you do not rush), deeply browned mushrooms (do not crowd the pan), and a can of white beans that gets folded in at the end for body and protein. The pasta cooks IN the broth, so all the starch stays in the sauce.

It is the kind of dinner that tastes like a long Sunday afternoon but happens on a Tuesday in March. Mushrooms, browned butter, parmesan, fresh thyme. The thing my mother would call cozy without trying.

“One pot, thirty minutes, no meat. Brown butter, deeply browned mushrooms, white beans, parmesan. A Tuesday dinner that tastes like a Sunday afternoon.”
Why this one earns a weeknight

What you'll love about it

  • 01Brown butter does the heavy lifting. Five minutes of patient cooking turns ordinary butter into the most flavorful base.
  • 02One pot. The pasta cooks in the broth and all the starch stays in the sauce. There is no draining and no separate pot of boiling water.
  • 03Vegetarian with real substance. The mushrooms give it umami depth and the white beans add body and protein without anyone feeling like a meal was missing.
  • 04Thirty minutes start to finish. The hardest part is not stirring the mushrooms while they brown.
A black cast iron Dutch oven on a lit gas stovetop, holding mixed cremini and shiitake mushrooms (halved and quartered) at the deeply caramelized stage: each piece is deep golden-brown on the visible cut surfaces, shrunken to about half their original size, glossy in a small amount of amber brown butter at the base. A wooden spoon rests at the edge. A small ramekin of fresh thyme sprigs sits beside the pot.
Don't stir for the first 3 minutes. That is the whole secret to mushrooms that taste like mushrooms.
Ingredients

For the pasta

  • 4 Tbspunsalted butter
  • 1 lbmixed mushrooms, cremini and shiitake, stems trimmed, halved or quartered
  • 1 tspkosher salt, divided
  • 1small yellow onion, finely diced
  • 4garlic cloves, minced
  • 1 tspfresh thyme leaves
  • 12 ozshort pasta
  • 4 cupslow-sodium vegetable broth
  • 1 (15 oz)can cannellini beans, drained and rinsed
  • ½ cupfreshly grated parmesan
  • 1 Tbspfresh lemon juice
  • ½ tspblack pepper

To finish

  • more grated parmesan
  • fresh thyme leaves
  • olive oil for drizzling
  • flaky salt and cracked pepper
Method

How I make it

  1. 01
    Brown the butter.
    Melt the butter in a large Dutch oven over medium heat. Continue cooking, swirling the pan occasionally, until the butter foams, then turns golden, then turns deep amber and smells deeply nutty (5 to 6 minutes total). Watch closely; the line between brown butter and burnt butter is about 30 seconds.
  2. 02
    Brown the mushrooms.
    Add the mushrooms in a single layer (work in 2 batches if your pot doesn't fit them all in one); sprinkle with ½ tsp of the salt. Don't stir for the first 3 minutes; let them sit and develop deep golden-brown caramelization. Then stir and cook another 3 minutes until they're shrunken and richly browned all over. This step is the whole dish; don't rush.
  3. 03
    Build the base.
    Add the onion and cook 3 minutes, stirring, until softened. Add the garlic and thyme and cook 30 seconds more, until fragrant.
  4. 04
    Add the pasta and broth.
    Pour in the pasta and broth, add the remaining ½ tsp salt, and bring to a boil. Reduce to medium-low and cook at a steady simmer for 10 to 12 minutes, stirring every minute or so, until the pasta is al dente and the broth has reduced to a glossy sauce that coats the back of a spoon.
    A pair of women's hands in a soft slate-blue pullover at three-quarter sleeve length using a light oak wooden spoon to stir a black cast iron Dutch oven on a lit gas stovetop. The Dutch oven holds short pasta and deeply browned mushrooms simmering in pale golden broth that is two-thirds reduced to a glossy sauce. The spoon is mid-stir, lifting some of the pasta to show the texture. A thin gold band visible on one finger.
    Stir every minute while the pasta finishes. That motion is what releases the starch and turns the broth into sauce.
  5. 05
    Finish.
    Off the heat, stir in the cannellini beans (they just need to warm through), the parmesan, the lemon juice, and the black pepper. Let sit 2 minutes; the sauce will thicken further. Taste and adjust salt.
  6. 06
    Serve.
    Spoon into wide bowls. Top with more grated parmesan, a few fresh thyme leaves, a small drizzle of olive oil, a pinch of flaky salt, and cracked pepper. Eat immediately.
Macro close-up of a light oak wooden spoon lifted from a wide cream-speckled stoneware bowl of brown butter mushroom pasta. The spoon carries a generous bite: short rigatoni pasta in a glossy nutty brown sauce, two pieces of deeply browned cremini mushroom, three white cannellini beans, a single fresh thyme leaf, all coated in glossy brown-butter sauce. A small grating of parmesan visible on the spoon. A thin string of sauce drips from the underside of the spoon back toward the bowl.
A note from Anna

Two things. First, the brown butter: when it smells deeply nutty and looks the color of milky tea, you're done. If it smells acrid, it has burned and you have to start over. Second, the mushrooms: do not crowd the pan and do not stir for the first 3 minutes. Mushrooms steam in their own moisture when piled too deep; you want them to caramelize, which only happens when each piece has contact with the dry hot pan. Work in batches if you need to.

What to serve with it

Round out the table.

  • ·01
    A simple green salad
    Arugula with lemon and olive oil, dressed at the table.
  • ·02
    Crusty bread
    For mopping up the brown-butter sauce at the bottom of the bowl.
  • ·03
    A medium-bodied red
    A pinot noir or a Chianti. Mushrooms and brown butter want a soft red.
Storage & reheating

Keeping the leftovers good.

Fridge: Keeps for 3 days in a sealed container. The pasta absorbs sauce as it sits, so add a splash of broth or water when reheating.

Reheat: In a small pan over medium-low heat with 2 to 3 tablespoons of water or broth, stirring gently to loosen the sauce. Finish with a fresh grating of parmesan.

Make ahead: Best the day of, but holds well for lunch the next day with the broth-splash trick.

Freezer: Not recommended; the pasta texture suffers.

Recipe card

Brown butter mushroom one-pot pasta with white beans

A vegetarian one-pot pasta built on brown butter, deeply browned mushrooms, white beans, and parmesan. Thirty minutes, one Dutch oven, the kind of dinner that tastes like a long Sunday.

Prep
10 min
Cook
20 min
Serves
4
Total
30 min
Ingredients
  • 4 Tbsp unsalted butter
  • 1 lb mixed mushrooms, cremini and shiitake, stems trimmed, halved or quartered
  • 1 tsp kosher salt, divided
  • 1 small yellow onion, finely diced
  • 4 garlic cloves, minced
  • 1 tsp fresh thyme leaves
  • 12 oz short pasta
  • 4 cups low-sodium vegetable broth
  • 1 (15 oz) can cannellini beans, drained and rinsed
  • ½ cup freshly grated parmesan
  • 1 Tbsp fresh lemon juice
  • ½ tsp black pepper
  • more grated parmesan
  • fresh thyme leaves
  • olive oil for drizzling
  • flaky salt and cracked pepper
Method (short version)
  1. 01Brown the butter.
  2. 02Brown the mushrooms.
  3. 03Build the base.
  4. 04Add the pasta and broth.
  5. 05Finish.
  6. 06Serve.

Nutrition information is an estimate. See full nutrition disclaimer.

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