Best Cream of Mushroom Casserole

Hey, friends!

Craving some comfort food? I’ve got just the thing for you!

Today, I’m diving into a classic: cream of mushroom casserole.

It’s creamy, hearty, and oh-so-satisfying.

Perfect as a side dish or even a main meal!

Grab your ingredients, and let’s get cooking!

cream of mushroom casserole
Image: mollyshomeguide.com / Photographer Molly

Preparation Time 15-20 minutes
Cooking Time 20-25 minutes
Total Time 35-45 minutes
Level of Difficulty Medium

Ingredients

  • 1 batch homemade cream of mushroom soup
  • 12 ounces small pasta shapes (such as penne, shells, or farfalle)
  • 1/2 teaspoon salt
  • 1/2 teaspoon black pepper
  • 1 cup thawed frozen peas
  • 1 cup grated mozzarella cheese

Step 1: Preheat Oven and Prepare Ingredients

Begin by preheating your oven to 375 degrees F.

Next, prepare a batch of Cream of Mushroom Soup following the recipe found here: Homemade Cream of Mushroom Soup Recipe.

Step 2: Cook the Pasta

While the soup simmers, bring a large pot of salted water to a boil.

Cook your pasta for 1 minute less than the package instructions indicate, as the pasta will continue to cook in the oven.

Drain the pasta, reserving about ½ cup of the cooking water.

Step 3: Combine Ingredients

In a large mixing bowl, stir together the prepared cream of mushroom soup, salt, pepper, frozen peas, and ½ cup of shredded mozzarella cheese.

Mix in the cooked pasta, along with 2 tablespoons of the reserved pasta cooking water.

If you find that the mixture is too thick, or if you’re preparing the casserole a day ahead for leftovers, add additional pasta cooking water, 1 tablespoon at a time, until you reach the desired consistency.

Taste the mixture and adjust the salt and pepper as needed.

Step 4: Assemble the Casserole

Transfer the pasta mixture to a casserole dish, spreading it out evenly.

Sprinkle the remaining ½ cup of shredded mozzarella cheese over the top of the mixture.

Step 5: Bake the Casserole

Bake the casserole, uncovered, in the preheated 375 degree F oven for 20-25 minutes, or until the cheese on top is bubbly and slightly browned.

Remove from the oven and let it cool slightly before serving.

Enjoy your delicious casserole!

cream of mushroom casserole
Image: mollyshomeguide.com / Photographer Molly

cream of mushroom casserole
Image: mollyshomeguide.com / Photographer Molly

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