Portobello Penne Pasta Casserole

4.5
(943)
716 Reviews
140 Photos

Portabello mushrooms, spinach, cheeses and penne combine to make a delicious casserole dish - perfect for family dinners or a party.

Submitted by chmadden
Updated on August 8, 2022
Tested by
Allrecipes Test Kitchen
Tested by Allrecipes Test Kitchen
The Allrecipes Test Kitchen staff are a team of culinary pros who make and vet recipes using only equipment you'd find in a home kitchen. Staff credentials vary but include training at the Culinary Institute of America; kitchen stints in fine dining restaurants; and countless hours in the test kitchen itself.
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Prep Time:
15 mins
Cook Time:
30 mins
Total Time:
45 mins
Servings:
8
Yield:
8 servings
Jump to Nutrition Facts

Ingredients

  • 1 (8 ounce) package uncooked penne pasta

  • 2 tablespoons vegetable oil

  • ½ pound portobello mushrooms, thinly sliced

  • ½ cup margarine

  • ¼ cup all-purpose flour

  • 1 large clove garlic, minced

  • ½ teaspoon dried basil

  • 2 cups milk

  • 2 cups shredded mozzarella cheese

  • 1 (10 ounce) package frozen chopped spinach, thawed

  • ¼ cup soy sauce

Directions

  1. Preheat oven to 350 degrees F (175 degrees C). Lightly grease a 9x13 inch baking dish.

  2. Bring a large pot of lightly salted water to a boil. Place pasta in the pot, cook for 8 to 10 minutes, until al dente, and drain.

  3. Heat the oil in a saucepan over medium heat. Stir in the mushrooms, cook 1 minute, and set aside. Melt margarine in the saucepan. Mix in flour, garlic, and basil. Gradually mix in milk until thickened. Stir in 1 cup cheese until melted. Remove saucepan from heat, and mix in cooked pasta, mushrooms, spinach, and soy sauce. Transfer to the prepared baking dish, and top with remaining cheese.

  4. Bake 20 minutes in the preheated oven, until bubbly and lightly brown.

Nutrition Facts (per serving)

380 Calories
21g Fat
32g Carbs
16g Protein
Nutrition Facts
Servings Per Recipe 8
Calories 380
% Daily Value *
Total Fat 21g 27%
Saturated Fat 6g 32%
Cholesterol 23mg 8%
Sodium 811mg 35%
Total Carbohydrate 32g 12%
Dietary Fiber 3g 10%
Total Sugars 5g
Protein 16g 32%
Vitamin C 2mg 3%
Calcium 354mg 27%
Iron 2mg 12%
Potassium 438mg 9%

* Percent Daily Values are based on a 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.

** Nutrient information is not available for all ingredients. Amount is based on available nutrient data.

(-) Information is not currently available for this nutrient. If you are following a medically restrictive diet, please consult your doctor or registered dietitian before preparing this recipe for personal consumption.

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