How many servings does this recipe make?

This recipe makes 4 servings. You can adjust the portion size directly on this page.

What ingredients do I need for Mushroom Pasta Gratin?

You need 13 ingredients. The key ingredients include: 1 tablespoon olive oil, 300 g brown button mushrooms, cleaned and sliced (or mixed mushrooms), 1 onion, chopped (half of it comes from the bechamel sauce if using my recipe), 1 garlic clove, sliced, and more.

Is Mushroom Pasta Gratin suitable as pasta & noodles?

Yes, Mushroom Pasta Gratin falls under the Pasta & Noodles category and is a great choice for this type of meal.

How do I store leftover Mushroom Pasta Gratin?

Store leftovers in an airtight container in the refrigerator for up to 3–4 days. Reheat gently before serving.

Mushroom Pasta Gratin Recipe

Name: Mushroom Pasta Gratin
Prep time: 15 min
Cook time: 30 min
Total time: 45 min
Yield: 4 servings
Ingredients: 1 tablespoon olive oil; 300 g brown button mushrooms, cleaned and sliced (or mixed mushrooms); 1 onion, chopped (half of it comes from the bechamel sauce if using my recipe); 1 garlic clove, sliced; 1/4 teaspoon dried rubbed sage; 1/2 teaspoon dried rosemary; 1/4 teaspoon fresh ground black pepper; 1/8 teaspoon chili powder; 250 g penne pasta, cooked according to package directions (whole wheat is fine); 1 mozzarella cheese, ball cubed (low-fat works fine); 3 tablespoons camembert cheese, cubed (low-fat works fine); 500 ml bechamel sauce (recommended Basic Béchamel Sauce With Lots of Flavour); 5 tablespoons cheese, grated (I used a mix of 4 cheeses, use your favourite)

Try this homemade Mushroom Pasta Gratin recipe the whole family will love. Made with olive oil, brown button mushrooms, onion and garlic. Easy step-by-s…

This Mushroom Pasta Gratin relies on simple, everyday ingredients such as olive oil, garlic clove, sliced, dried rubbed sage and dried rosemary. It comes together quickly and makes 4 servings, at about 755 kcal each. The step-by-step instructions below are written to be easy to follow, even on a busy day.

It's versatile enough for an easy weeknight dinner yet satisfying enough for guests at the weekend. Serve it with your favorite sides, and keep any leftovers for a quick meal the next day.

Updated Jun 30, 2026

Serves 4 Pasta & Noodles

Tips for the best results

Read through all the steps once before you start and measure out your ingredients first — it makes everything go more smoothly.
Taste as you go and adjust the seasoning before serving.
Avoid overcrowding the pan — cook in batches if needed for the best texture.
Let the dish rest for a few minutes before serving so the flavors settle.
Store leftovers in an airtight container in the fridge and enjoy within a few days.

Variations & substitutions

Feel free to swap in similar ingredients you already have on hand and adjust seasoning to taste.

No specific allergen information. Please check the ingredient list for possible allergens.

My Personal Notes

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Mushroom Pasta Gratin

Tips for the best results

Variations & substitutions

My Personal Notes

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Frequently Asked Questions