Creamy Mushroom Pasta Bake

User Reviews

5

44 reviews
Excellent
  • Prep Time

    15 mins

  • Cook Time

    45 mins

  • Total Time

    1 hr

  • Servings

    4

  • Calories

    1066 kcal

  • Course

    Main Course

  • Cuisine

    Italian

Creamy Mushroom Pasta Bake

This Creamy Mushroom Pasta Bake combines roasted baby bella mushrooms with a rich mixture of ricotta, fontina, and Parmesan cheeses, heavy cream, and steamed spinach, all tossed with rigatoni pasta. The mushrooms are well browned for a deep flavor, and the pasta is slightly undercooked before baking to ensure a tender finish. Baking the dish covered helps retain moisture while melting the cheese for a creamy texture. It's a hearty and comforting vegetarian casserole with layered flavors from thyme and garlic.

Description

Creamy Mushroom Pasta Bake centers on roasted baby bella mushrooms seasoned with fresh thyme, kosher salt, and black pepper, roasted until browned for depth of flavor. Rigatoni pasta is cooked very al dente to account for oven baking. The baking dish features a creamy filling made from ricotta and fontina cheeses, heavy cream, steamed and well-drained spinach, garlic paste, and a touch of nutmeg. Parmigiano Reggiano cheese is folded in and sprinkled on top before baking.

The bake is cooked covered in the oven to marry the flavors and melt the cheeses, resulting in a creamy, cheesy casserole with tender pasta and earthy mushrooms. The preparation ensures the pasta absorbs the creamy sauce without becoming watery, aided by squeezing moisture from the spinach before mixing.

This dish works well as a filling main for vegetarians or a comforting side dish. It benefits from roasting mushrooms separately to develop robust flavor and from using quality cheeses for richness. The thyme and nutmeg add aromatic depth without overwhelming the other ingredients.

Leftovers can be stored refrigerated for up to three days and reheated gently. Alternative cheese options include mozzarella, soft provolone, or Swiss. Using parchment paper then foil on top during baking can prevent sticking and over-browning.

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Ingredients

Servings

For the roasted mushrooms

  • 1 1/2 pounds baby bella mushroom quartered
  • 1 teaspoon kosher salt
  • 1 teaspoon black pepper
  • 3 tablespoons thyme fresh
  • 1/4 cup olive oil

Remaining ingredients

  • 1 pound rigatoni pasta
  • 3/4 pound ricotta cheese
  • 1/2 pound fontina cheese shredded
  • 3/4 cup heavy cream
  • 8 ounces baby spinach steamed, drained
  • 2 cloves garlic paste
  • 1/2 cup parmigiano reggiano divided
  • 1 pinch nutmeg optional

Instructions

  1. Preheat oven to 450f and set one rack to the second-lowest position and the other to the middle of the oven. Toss mushrooms with olive oil, thyme, salt, and pepper. Spread out mushrooms on a baking sheet and roast on the lower rack for 15-20 minutes or until well browned. Don't overcrowd the mushrooms. Use two sheets if necessary.
  2. Meanwhile, bring a pot of salted water (2 tablespoons kosher salt) to boil and cook the rigatoni until very al dente. About 2 minutes less than package instructions.
  3. Cook spinach for 30 seconds in boiling water and drain. Once able to handle, squeeze the water out then chop. In a large bowl mix together the spinach, nutmeg, heavy cream, ricotta, Fontina cheese, 1/4 cup Parmigiano Reggiano, garlic, and the roasted mushrooms.
  4. Add the pasta to the bowl and mix once more. Taste test and adjust salt and pepper to taste. Place contents of the bowl in a 9 by 13 baking dish. Top with the remaining Parmigiano and bake for 15 minutes covered. Covering with parchment paper then foil will prevent sticking.
  5. After 15 minutes remove covering and bake for 5 minutes more until golden. For even more color broil for the last 1-2 minutes but watch very carefully.
  6. Wait 15 minutes before serving so that the cheese settles. Enjoy!

Notes

  • Undercook pasta by 2-3 minutes since it will continue cooking in the oven.
  • Drain and squeeze out moisture from spinach thoroughly to avoid excess liquid in the bake.
  • Substitute fontina cheese with mozzarella, soft provolone, or Swiss if preferred.
  • Covering the dish with parchment paper then foil during baking helps prevent sticking.
  • Store leftovers for up to 3 days and reheat in the microwave before serving.

Nutrition Information

Show Details
Calories 1066kcal (53%) Carbohydrates 97.8g (33%) Protein 51.3g (103%) Fat 55.6g (86%) Saturated Fat 27g (135%) Cholesterol 151mg (50%) Sodium 774mg (32%) Potassium 878mg (19%) Fiber 6.4g (26%) Sugar 7.4g (15%) Calcium 808mg (81%) Iron 9mg (50%)

Nutrition Facts

Serving: 4Serving

Amount Per Serving

Calories 1066 kcal

% Daily Value*

Calories 1066kcal 53%
Carbohydrates 97.8g 33%
Protein 51.3g 103%
Fat 55.6g 86%
Saturated Fat 27g 135%
Cholesterol 151mg 50%
Sodium 774mg 32%
Potassium 878mg 19%
Fiber 6.4g 26%
Sugar 7.4g 15%
Calcium 808mg 81%
Iron 9mg 50%

* Percent Daily Values are based on a 2,000 calorie diet.

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Overall Rating

5

44 reviews
Excellent

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