1-Step 1: Boil the pasta water Bring a large pot of salted water to a boil. You want enough water so the pasta can move freely and cook evenly. When the water is ready, add the pasta as soon as you start cooking the mushrooms. This timing keeps both parts of the dish moving together. Cook the pasta according to the package instructions, but stop 1 minute early. That slightly undercooked texture matters because the pasta will finish in the skillet with the sauce. Before draining, reserve 1 cup of the pasta cooking water. This is one of the most important steps in any good mushroom pasta recipe because it helps create a smooth, silky sauce later.

2-Step 2: Start the mushrooms Place a large skillet over medium heat and melt half of the butter with all of the olive oil. The oil keeps the butter from browning too quickly, while the butter adds richness from the start. Add the sliced mushrooms in an even layer if possible. Let the mushrooms cook until they release their water and it evaporates. After that, the edges will begin to turn golden, which usually takes about 5 minutes. Add the salt and pepper halfway through cooking so the mushrooms season evenly as they soften and brown. If you are using cremini or Swiss brown mushrooms, you may notice an even deeper, earthier flavor.

3-Step 3: Add garlic and the rest of the butter Once the mushrooms are browned, add the minced garlic and the remaining butter. Cook for about 2 more minutes, stirring often, until the garlic smells fragrant and the mushrooms look glossy and golden. This is where the dish starts to smell absolutely amazing. The reason for adding the butter later is simple: it helps coat the mushrooms at the end, so they taste buttery without needing a huge amount of butter overall. That little trick gives the dish a richer flavor while keeping it balanced.

4-Step 4: Bring the pasta and sauce together Add the drained pasta to the skillet with about 3/4 cup of the reserved pasta water and the parmesan cheese. Toss gently so the pasta gets coated and the cheese melts into the liquid. Keep stirring over medium to low heat until the water reduces into a saucy glaze that clings to the pasta. If the pasta starts to look dry, add a little more pasta water a splash at a time. The starch in the water helps the sauce emulsify, which means it turns creamy and glossy without needing much fuss. This step is what makes the mushroom pasta recipe feel restaurant-worthy, even though it uses simple ingredients.

5-Step 5: Taste and finish Taste the pasta and adjust the salt and pepper if needed. Depending on your parmesan and mushrooms, you may want a little more seasoning. If you like, add a small splash of cream at this point for a richer dish, or toss in fresh greens like spinach for extra color and balance. Remove the skillet from the stove and serve immediately. Top with chopped parsley and extra parmesan cheese. This pasta is best eaten right away while the sauce is glossy and warm.