Shroomy beans are my go-to "I have nothing in the fridge" dinner, and honestly, I cook them all the time. This version uses oyster and king trumpet mushrooms, which get crispy, golden edges and a meaty, almost scallop-like bite. Add garlicky aromatics, a spoonful of umami-packed paste like miso or tomato paste, and a couple of cans of beans and chickpeas, simmered right in their own liquid until saucy and rich. A squeeze of lemon at the end makes it all sing, and the whole thing gets piled onto thick slices of toasty bread.
The first time I made this for my family, they couldn't believe how good it was. "This is just mushrooms and beans?" Yep. That's the magic of a few simple ingredients cooked the right way. Once you learn the formula, you can make it with whatever you have.
Looking for the first version with bell peppers, apple wine, butter beans, and quinoa? Check out our original Shroomy Beans with Butter Beans & Quinoa. This one is the lemony oyster and king trumpet remix, served on toasty bread.
What are shroomy beans with oyster mushrooms?
Quick answer: Shroomy beans are a one-pan vegan dish of sautéed mushrooms (here, oyster and king trumpet) and canned beans simmered with aromatics, spices, and an umami paste like miso, tomato paste, or Better Than Bouillon. The canned bean liquid turns into a silky, savory sauce, and a squeeze of lemon brightens it at the end. It takes about 35 minutes, serves 4, and is served on thick slices of toasted bread for scooping up all the sauce.
This recipe at a glance
- Total time: about 35 minutes
- Serves: 4
- Equipment: one large skillet
- Flavor: savory, earthy, garlicky, umami-rich, and bright
- Protein: two cans of legumes make it filling and high in plant protein and fiber
- Diet: 100% vegan, dairy-free, and easily gluten-free
The shroomy beans formula
This isn't a strict recipe. It's a formula you can cook from memory. Pick one or more from each category:
- Mushrooms (or any produce): cremini, shiitake, oyster, king trumpet, or a mix. Bell peppers, zucchini, kale, or spinach work too.
- Aromatics: onion, shallot, garlic, leek, or ginger.
- Spices: smoked paprika, cumin, thyme, oregano, chili flakes, or black pepper.
- Tasty pastes: white miso, tomato paste, Better Than Bouillon, harissa, or gochujang.
- Canned legumes (with their liquid): butter beans, cannellini, chickpeas, black beans, or lentils.
- Acid: fresh lemon juice and zest, or a splash of vinegar.
- Something toasty: crusty bread, sourdough, or a baguette, toasted and rubbed with garlic.
The lemon at the end is the secret weapon. A pop of acid wakes up all that savory depth. We dig into why in Why Your Vegan Meals Taste Boring + The 3-Minute Fix.
Key ingredients
Oyster and king trumpet mushrooms
Oyster mushrooms are delicate and frilly. Tear them into bite-size clusters by hand, and their thin edges crisp up beautifully in a hot pan. King trumpet mushrooms (also called king oyster) have thick, firm stems with a meaty, chewy bite. Slice them into ½-inch coins or tear them lengthwise into strips. Together they give you crispy and meaty in one pan. Use about 1 pound total, roughly half and half. Can't find them? Cremini or shiitake work great.
Aromatics
An onion and plenty of garlic build the flavor base. Shallots or leeks are lovely swaps.
Umami pastes
This is where the "how is this so good?" comes from. White miso adds salty, funky depth, tomato paste brings sweetness and color, and Better Than Bouillon adds rich, brothy savoriness. Use one, two, or all three. For a vegan version, choose a plant-based bouillon such as Better Than Bouillon's Vegetable, No Chicken, or Mushroom bases, since some of their varieties contain meat.
Canned beans and chickpeas
I use one can of white beans (butter beans or cannellini) and one can of chickpeas, and I pour them in with their liquid. That starchy liquid (also called aquafaba) thickens into a creamy, glossy sauce with zero cream. If your cans are very salty, use low-sodium beans or drain and rinse one of them.
Lemon
Fresh lemon zest and juice stirred in at the end cut through the richness and make every flavor taste brighter.
Toasty bread
This is how I serve it: thick slices of sourdough or crusty bread, toasted until golden and rubbed with a cut garlic clove. The crunchy toast soaks up the savory bean sauce like a dream. Prefer a grain? Our original version is served over quinoa (see Variations below).
How to make shroomy beans, step by step
Step 1: Sauté the aromatics
Heat the olive oil in a large skillet over medium heat. Add the diced onion and a pinch of salt and cook for 4 to 5 minutes until soft and translucent. Add the garlic and cook for 1 minute until fragrant.
Step 2: Brown the oyster and king trumpet mushrooms
Turn the heat to medium-high and add the king trumpet coins first, since they're denser, then the torn oyster mushrooms. Spread them out and let them sit for a few minutes before stirring so they brown instead of steam. Cook 6 to 8 minutes until golden and crispy at the edges. Work in batches or add an extra drizzle of oil if your pan is crowded.
Step 3: Season with spices
Sprinkle in the smoked paprika, cumin, thyme, black pepper, and chili flakes. Stir for about 30 seconds until fragrant.
Step 4: Add the pastes
Push everything to the side, add the tomato paste, miso, and bouillon to the open spot, and let them sizzle for 1 minute. Then stir them into the mushrooms until everything is coated and deeply colored.
Step 5: Add the beans and chickpeas with their liquid
Pour in both cans, liquid and all. Bring to a simmer and cook 8 to 10 minutes, stirring occasionally, until the sauce thickens. Mash a few beans against the side of the pan to make it extra creamy. Add a splash of water if it gets too thick.
Step 6: Finish with lemon
Turn off the heat and stir in the lemon zest and juice. Taste and adjust the salt. Between the bouillon, miso, and canned beans, you may not need much.
Step 7: Serve
Toast thick slices of bread, rub them with a cut garlic clove, and spoon the shroomy beans right over the top. Finish with fresh herbs and a drizzle of olive oil.
Variations
- The original: sauté onion and bell peppers, deglaze the mushrooms with a splash of apple wine, use butter beans, stir in vegan cheese, and serve over quinoa. Get the full recipe in our original Shroomy Beans with Butter Beans & Quinoa.
- Shredded king trumpet: shred the king trumpet stems with a fork into "pulled" strands for an even meatier texture.
- Creamy: stir in a spoonful of vegan cream cheese, cashew cream, or coconut milk at the end.
- Greens: fold in a few handfuls of spinach, kale, or chard until wilted.
- Spicy: use harissa or gochujang as your paste, or finish with chili crisp.
- Smoky: double the smoked paprika and add a pinch of chipotle powder.
- Brothy: add 1 cup of water or broth and serve it like a stew with lots of bread for dunking.
- Different beans: try black beans, pinto beans, or lentils.
Substitutions
- Oyster or king trumpet mushrooms: cremini, shiitake, maitake, or any produce you have, like zucchini, peppers, eggplant, or cauliflower.
- Miso: soy sauce or tamari (start with 1 tablespoon).
- Better Than Bouillon: a vegan bouillon cube or ½ cup vegetable broth.
- Tomato paste: harissa, gochujang, or sun-dried tomato paste.
- Lemon: lime juice, red wine vinegar, or apple cider vinegar.
- Canned beans: about 3 cups of home-cooked beans plus 1 cup of their cooking liquid.
What to serve with shroomy beans
Toasty bread is the move here: sourdough, ciabatta, a baguette, or any crusty loaf, toasted and rubbed with garlic. A crisp green salad on the side keeps it fresh. If you'd rather have a grain bowl, the original version is served over quinoa.
Hooked on oyster and king trumpet mushrooms? Try our Lemon Herb Couscous Bowl with Garlicky Oyster Mushrooms and Crispy King Trumpet Mushrooms & Green Beans with Lemon-Garlic Hummus.
Storage and meal prep
Shroomy beans taste even better the next day. Store leftovers in an airtight container in the fridge for up to 4 days, or freeze for up to 3 months. Reheat on the stove with a splash of water to loosen the sauce, then add a fresh squeeze of lemon. Toast the bread fresh when serving so it stays crunchy.
Shroomy Beans with Oyster & King Trumpet Mushrooms
Equipment
- Large skillet
Ingredients
Aromatics + mushrooms
- 2 tablespoon olive oil
- 1 onion diced, or 2 shallots
- 4 cloves garlic minced
- 8 oz king trumpet mushrooms 225 g, sliced into ½-inch coins
- 8 oz oyster mushrooms 225 g, torn into bite-size clusters
Spices (use what you like)
- 1 teaspoon smoked paprika
- ½ teaspoon ground cumin
- ½ teaspoon dried thyme or oregano
- ¼ teaspoon chili flakes optional
- black pepper to taste
Tasty pastes
- 1 tablespoon tomato paste
- 1 tablespoon white miso
- 1 teaspoon Better Than Bouillon Vegetable, No Chicken, or Mushroom (vegan)
Legumes + finish
- 1 can butter beans or cannellini 15 oz / 425 g, with liquid
- 1 can chickpeas 15 oz / 425 g, with liquid
- 1 lemon zest and juice
- fresh parsley or cilantro optional, for garnish
To serve
- 4 thick slices crusty bread or sourdough toasted and rubbed with a cut garlic clove
Instructions
- Heat the olive oil in a large skillet over medium heat. Cook the onion with a pinch of salt for 4 to 5 minutes until soft. Add the garlic and cook 1 minute.
- Increase heat to medium-high. Add the king trumpet coins, then the oyster mushrooms, in an even layer and let them brown before stirring. Cook 6 to 8 minutes until golden and the liquid has evaporated.
- Add the spices and stir 30 seconds until fragrant.
- Push the mushrooms aside, add the tomato paste, miso, and bouillon to the pan, and fry 1 minute. Stir everything together.
- Pour in the beans and chickpeas with their liquid. Simmer 8 to 10 minutes, stirring and mashing a few beans, until thick and saucy. Add a splash of water if needed.
- Turn off the heat. Stir in the lemon zest and juice, then taste and adjust salt and pepper.
- Toast the bread, rub with a cut garlic clove, and spoon the shroomy beans over the top. Finish with fresh herbs and a drizzle of olive oil.
Notes
Frequently asked questions
What are shroomy beans?
Shroomy beans are a one-pan vegan dish of sautéed mushrooms and canned beans simmered with aromatics, spices, and umami pastes like miso, tomato paste, or Better Than Bouillon, then finished with lemon. This oyster and king trumpet version is served on toasted bread, while the original is served over quinoa.
Why add the liquid from the canned beans?
The starchy liquid from canned beans and chickpeas, also called aquafaba, thickens as it simmers and creates a creamy, savory sauce without any cream or flour.
Is Better Than Bouillon vegan?
Some varieties are. Better Than Bouillon's Vegetable, No Chicken, No Beef, and Mushroom bases are plant-based, while its chicken and beef bases contain meat. Always check the label.
What are the best mushrooms for shroomy beans?
Oyster and king trumpet mushrooms are our favorite: oyster mushrooms get crispy, frilly edges and king trumpet stems stay meaty and chewy. Cremini and shiitake are great, budget-friendly alternatives.
How do you prepare oyster and king trumpet mushrooms?
Tear oyster mushrooms into bite-size clusters by hand. Trim the base of king trumpet mushrooms and slice the stems into half-inch coins or tear them lengthwise into strips. No need to wash them under water; just brush off any dirt.
What is the difference between oyster and king trumpet mushrooms?
King trumpet mushrooms, also called king oyster, are a large relative of oyster mushrooms with thick, firm stems and small caps. Regular oyster mushrooms are thinner and more delicate, with wide, frilly caps.
Can I use dried beans instead of canned?
Yes. Use about 3 cups of cooked beans plus 1 cup of their cooking liquid to replace two 15-ounce cans.
Are shroomy beans gluten-free?
They can be. Mushrooms, beans, and spices are naturally gluten-free. Use gluten-free miso and bouillon, and serve with gluten-free bread.
Are shroomy beans high in protein?
Yes. Two cans of beans and chickpeas provide plenty of plant protein and fiber, which makes this a filling vegan dinner.
Can I make shroomy beans ahead of time?
Yes. They keep in the fridge for up to 4 days and freeze for up to 3 months. The flavor gets even better overnight. Add fresh lemon after reheating.
More cozy bean recipes
- Original Shroomy Beans with Butter Beans & Quinoa
- Lemon Herb Couscous Bowl with Garlicky Oyster Mushrooms
- Crispy King Trumpet Mushrooms & Green Beans with Lemon-Garlic Hummus
- Vegan Yogurt Beans with Seared Veggies
- Harissa Chickpeas & Rice
- Chickpeas & Butter Beans alla Nerano
- Vegan Bangers & Beans with Miso Tomato Vegetable Stew
- Vegan Meat Lovers Bean Stew with Miso Butter Soy Rice
Made shroomy beans? Leave a star rating and tell us in the comments which mushrooms, pastes, and beans you used. We love seeing your combinations, and we'd love to know if your family was as surprised as mine! Tag @makepurethyheart when you share your plate.
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