One Pan Creamy Mushroom Pasta (No-Drain Method)

Okay, so I messed this up three times before getting it right. Three. Times. The first attempt was basically mushroom soup with soggy noodles floating in it. The second one, I added too much liquid and ended up with what I can only describe as a very sad, watery situation. But the third time? The third time, I finally figured out the One Pan Creamy Mushroom Pasta method that actually works, and now I make it almost every single week.

This is the no-drain version, which means the pasta cooks right in the sauce, absorbs all that flavor, and you don’t have to deal with draining boiling water into a colander while steam fogs up your glasses. If you wear glasses, you know exactly what I’m talking about.

Why This One Pan Creamy Mushroom Pasta Recipe Actually Works

Look, I’ve tried a LOT of creamy mushroom pasta recipes online. Some of them are just wrong. Like, fundamentally flawed in a way that produces either paste or soup. The no-drain method is genuinely different because the starchy pasta water stays in the pan and naturally thickens the sauce. You’re not losing any of that flavor down the sink.

The trick is the liquid ratio. I know, I know, it sounds fussy. But hear me out. You need just enough liquid so the pasta cooks through but not so much that you end up with broth. I’ve tested this probably fifteen times now and the ratio below is the one. Don’t change it. Well… okay, maybe a tiny bit if your pan is unusually wide.

My neighbor Sarah swears by adding a splash of white wine to her version and honestly she’s not wrong, but I don’t always have wine open on a Tuesday so I’ve written this recipe without it. (But if you have wine? Add a splash when the mushrooms are cooking. You’re welcome.)

Ingredients for This Creamy One Pan Mushroom Pasta

Before we get into it, let me tell you something about mushrooms. Good luck finding decent cremini mushrooms that aren’t already going slimy at the edges this time of year. I usually grab two packages just in case and throw out the dodgy ones. You want firm, dry mushrooms for this.

Here’s what you need (serves 4):

• 300g (about 10 oz) pasta, penne or rigatoni work best (not angel hair, trust me on this)
• 250g (about 9 oz) cremini or baby bella mushrooms, sliced
• 4 cloves garlic, minced (I use 6 because I’m obsessed with garlic, so I use way more than any recipe tells me to)
• 1 medium onion, diced
• 750ml (about 3 cups) vegetable or chicken broth
• 240ml (1 cup) heavy cream
• 60g (about ½ cup) freshly grated Parmesan cheese (don’t buy pre-shredded cheese. Just don’t.)
• 2 tablespoons olive oil or butter
• 1 teaspoon dried thyme
• ½ teaspoon dried Italian seasoning
• Salt and black pepper to taste
• Fresh parsley for serving, optional but pretty

Possible substitutions I’ve actually tried:

• Swapped heavy cream for half-and-half once when I ran out. Works fine, slightly less rich.
• Used Greek yogurt once in a pinch. Honestly? Not bad but it can split if your heat is too high so be careful.
• For a vegan version: use full-fat coconut cream instead of heavy cream and skip the Parmesan or use a vegan alternative. The coconut flavor does come through a little but it’s not weird.

Wait, I almost forgot. Make sure your broth is warm or at least room temp when you add it. Cold broth added to a hot pan slows everything down and then you end up with uneven cooking. Learned this the hard way.

How to Make One Pan Creamy Mushroom Pasta (Step by Step)

One pan. One pot. Whatever you’ve got. I use a large, wide skillet with high sides, about 12 inches. A Dutch oven works too.

Step 1: Heat your oil or butter over medium-high heat. Add the diced onion and cook for 3 to 4 minutes until it’s soft and starting to turn a little golden on the edges. This is not optional. Properly cooked onion is the base of everything.

Step 2: Add the garlic. Last Tuesday, I completely burned the garlic because my neighbor knocked at exactly the wrong moment. Don’t let that happen to you. Garlic goes in for about 30 seconds, stirring constantly, until fragrant. It should smell amazing, not smoky.

Step 3: Add the sliced mushrooms. Now here’s the thing, they’re going to look like way too many mushrooms when they go in. That’s fine. Mushrooms shrink dramatically as they cook. Let them sit for 2 to 3 minutes without stirring first so they can actually get some color on them. Then stir and cook another 3 minutes. You want them golden and slightly caramelized, not steamed and pale. Pale mushrooms have no flavor.

Step 4: Season with the dried thyme, Italian seasoning, salt, and pepper. Stir everything together.

Step 5: Now pour in the broth. All of it. Bring it to a boil, then add the uncooked pasta straight in. Stir well to make sure no pasta is sticking together or sitting on top of the liquid.

Step 6: Reduce heat to a steady medium simmer, not a roaring boil, not barely bubbling. Medium. It’ll look weird at first, kinda lumpy and chaotic, but that’s normal. Stir every 2 minutes or so. Don’t just leave it and walk away.

Step 7: Cook for 10 to 13 minutes, stirring regularly, until the pasta is just cooked and most of the liquid has been absorbed. There will still be some liquid in the pan and that’s exactly what you want.

Step 8: Turn the heat down to low. Pour in the heavy cream and stir it through. Let it cook for 2 more minutes so everything thickens together. You’ll see the sauce coat the pasta and turn this gorgeous, pale, creamy color.

Step 9: Take the pan off the heat and stir in the Parmesan. The residual heat will melt it right in. This is AMAZING because you’re adding all that salty, nutty flavor without any extra cooking.

Step 10: Taste it. Adjust salt and pepper. Serve with fresh parsley on top if you want it to look like you know what you’re doing.

That’s it. Honestly. Ten steps sounds like a lot but it’s basically: cook aromatics, add pasta and liquid, let it absorb, finish with cream and cheese. One pan. Done.

Creamy Mushroom Pasta Sauce: Tips I Figured Out the Hard Way

• The sauce will thicken as it sits. If you’re serving this to guests and it’s been sitting for 10 minutes, just add a splash of broth or cream and stir over low heat.

• Don’t use a whisk for this. Spoon works better. A whisk gets tangled in the pasta. Use a wooden spoon or silicone spatula.

• Pasta shape matters more than you’d think. Penne and rigatoni are ideal because their tubes catch the sauce. Thin pasta like spaghetti technically works but the texture is different, more like a pasta soup situation.

• Found out by accident that adding wine makes everything better. A quarter cup of white wine after the mushrooms are cooked, before the broth, deglazes all the good bits off the bottom of the pan.

• For a creamy mushroom pasta chicken version: slice 2 chicken breasts thin and cook them first in the pan before the onions. Remove, set aside, and add back in at Step 8 with the cream. This is basically the easy one pan creamy mushroom chicken pasta version and it’s incredibly good.

Can You Make This Ahead or Bake It?

Yes to both! For a creamy mushroom pasta bake version, follow the recipe up to Step 8 but slightly undercook the pasta by 2 minutes. Transfer to a baking dish, top with extra Parmesan and some breadcrumbs if you’re feeling ambitious, and bake at 375°F (190°C) for 20 minutes until bubbly and golden on top. My 8-year-old absolutely loses it for the baked version. He refuses to eat anything green but somehow loves this, even with the parsley on top. Kids are weird.

One Pan Creamy Mushroom Pasta: Frequently Asked Questions

Is this similar to Olive Garden’s creamy mushroom pasta? Kind of! The Olive Garden version is richer and heavier. This is a lighter, weeknight take on that same comforting vibe. If you want to go all out, double the cream and add a splash of white wine.

Can I make a vegan version? Absolutely. Use full-fat coconut cream, vegetable broth, skip the Parmesan or use nutritional yeast, and you’ve got a solid creamy mushroom pasta vegan version. It tastes different from the dairy version but it’s genuinely really good on its own terms.

Is this really one pan, or is that a lie? One pan. For real. I’ve done this many many times with nothing but a skillet and a wooden spoon.

Final Thoughts

It’s not fancy, but it’s good, and that’s what matters. This One Pan Creamy Mushroom Pasta has gotten me through busy weeknights, unexpected guests, and at least three “I have no idea what to make for dinner” moments. People keep asking for the recipe, so I guess I did something right.

Try this and tell me what you think. And if you discover a variation that makes it even better, drop it in the comments because I’m always tinkering.

Happy cooking! (And may your smoke alarms stay quiet.)