Garlic Butter Mushroom Spaghetti (Easy 25-Minute Pasta)

By : Moiz Blogger | 0 Comments | On : 20/10/2026 | Category : Spaghetti

Garlic butter mushroom spaghetti is a quick, savory pasta dinner made with golden mushrooms, garlic, butter and a little starchy pasta water. You do not need cream to make the sauce glossy. This straightforward recipe takes approximately 25 minutes and serves four.

Quick recipe summary

Preparation: 10 minutes | Cooking: 15 minutes | Total: 25 minutes | Servings: 4 | Equipment: Large saucepan, wide skillet, tongs.

Ingredients

• 12 ounces (340 g) dry spaghetti
• 12 ounces (340 g) cremini or button mushrooms, wiped clean and sliced
• 2 tablespoons olive oil
• 2 tablespoons unsalted butter
• 4 garlic cloves, finely minced
• 1/4 teaspoon red pepper flakes, optional
• 1/2 teaspoon fine salt, plus salt for pasta water
• 1/4 teaspoon freshly ground black pepper
• 1/3 cup (30 g) finely grated Parmesan cheese, optional
• 2 tablespoons chopped fresh parsley
• 1 teaspoon fresh lemon juice, optional
• Up to 3/4 cup (180 ml) reserved pasta cooking water

How to make garlic butter mushroom spaghetti

1. Cook spaghetti. Bring a large pot of salted water to a boil. Add spaghetti and cook according to the package directions until al dente. Before draining, reserve 3/4 cup of the starchy cooking water.
2. Brown mushrooms. While the pasta cooks, heat olive oil in a wide skillet over medium-high heat. Add mushrooms in an even layer. Cook for 5–7 minutes, stirring occasionally, until their moisture evaporates and they begin to brown. If the skillet is crowded, cook in two batches.
3. Add aromatics. Reduce heat to medium-low. Stir in butter, garlic, optional chili flakes, salt and pepper. Cook for 30–60 seconds until the garlic smells fragrant but is not browned.
4. Combine. Add drained spaghetti to the skillet. Pour in 1/4 cup reserved pasta water and toss with tongs for 1–2 minutes. Add more pasta water in small amounts until the butter and starch form a light coating.
5. Finish. Turn off heat. Toss in Parmesan if using, parsley and optional lemon juice. Taste and adjust salt and pepper. Serve immediately.

Why pasta water makes the sauce silky

Water used to cook spaghetti contains starch released by the pasta. When tossed with butter and a little oil, it helps create a glossy coating without heavy cream. Add the water gradually: too much at once can leave the pasta watery.

Tips for better mushroom spaghetti

• Use a wide pan: Mushrooms brown better when they are not piled on top of each other.
• Wait before salting mushrooms: Browning first can help them develop a deeper flavor.
• Lower heat before garlic: Garlic burns quickly and can taste bitter.
• Save the pasta water: It helps the sauce cling to spaghetti.
• Serve right away: Pasta absorbs sauce as it sits.

Variations

Vegan mushroom spaghetti

Use plant-based butter and skip Parmesan or replace it with a suitable dairy-free alternative.

Spinach mushroom spaghetti

Add 2 handfuls of baby spinach during the final minute of tossing and cook until wilted.

Extra lemon and herbs

Add a little more lemon juice and chopped parsley for a brighter finish. Start small and taste.

Protein addition

Stir in already cooked white beans for a plant-based option. Heat until hot throughout.

What to serve with mushroom pasta

Pair with a fresh cucumber tomato salad or a bowl of red lentil soup. For a full dinner, serve smaller pasta portions alongside roasted vegetables.

Storage and reheating

Refrigerate leftovers in a covered container within two hours and use within 3–4 days. Reheat in a skillet over medium-low heat with a splash of water until hot throughout. The sauce may be less glossy after refrigeration. Freeze only if needed; cooked spaghetti can soften when thawed.

Frequently asked questions

Can I make mushroom spaghetti without cream?

Yes. Butter and reserved starchy pasta water make a light sauce without cream.

What mushrooms work best?

Cremini or white button mushrooms are easy to find. A mixture of mushrooms can also add variety.

Why are my mushrooms watery?

A crowded pan traps steam. Use a wide skillet and cook in batches if necessary.

Can I use another pasta shape?

Yes. Linguine, fettuccine and penne work. Follow the package cooking time and reserve some pasta water.

How do I keep garlic from burning?

Reduce the heat before adding garlic and cook briefly, stirring, just until fragrant.

Editorial note

This is original editorial recipe guidance, not a claim of independently kitchen-tested results. Times vary with cookware and ingredient sizes. Any featured photograph is illustrative and may not show the exact recipe.