Creamy Mushroom and Cheese Stuffed Shells

Mushroom Shells and Cheese is the ultimate comfort food—simple to make and full of rich, savory flavor. This version combines three gooey cheeses with caramelized mushrooms and warming spices to create an elevated, grown-up take on classic mac and cheese. It comes together in about 30–40 minutes and uses a roux to build a creamy sauce without heavy cream. Perfect for chilly evenings when you want something hearty and satisfying.

Mushroom Shells and Cheese

This dish is a comforting, elevated mac and cheese made especially for mushroom lovers. Sautéed baby bella mushrooms brown and develop a deep, savory flavor that pairs beautifully with a blend of sharp cheddar, parmesan, and provolone. The roux-based sauce keeps the texture silky without relying on heavy cream, and the whole recipe takes under an hour from start to finish, making it suitable for weeknights or a cozy weekend dinner.

Why this recipe works

• Caramelized mushrooms add umami and depth that balance the richness of the cheese.
• A roux (butter + flour) thickens the sauce for a creamy texture without heavy cream.
• Three complementary cheeses—sharp cheddar for tang, parmesan for savory notes, and provolone for meltability—create a layered, satisfying flavor.
• Medium shell pasta traps the sauce, making each bite cheesy and flavorful.

Ingredients

• 4 tablespoons butter, divided
• 16 ounces sliced mushrooms (baby bella preferred)
• 2 cloves garlic, minced
• 1 teaspoon onion powder
• 1 teaspoon dried oregano
• 1/4 teaspoon red pepper flakes (optional)
• Salt and black pepper, to taste
• 2 tablespoons all-purpose flour
• 2 cups milk (any kind; 2% works well)
• 1 cup freshly shredded sharp cheddar cheese
• 1/2 cup freshly shredded parmesan cheese
• 1 cup shredded provolone cheese
• 2 cups cooked medium shell pasta (dry measure)

Instructions

1. Heat 2 tablespoons of butter in a large skillet over medium heat. Add the sliced mushrooms and cook, stirring occasionally, until they are deeply browned and caramelized, about 8–12 minutes. Remove the mushrooms to a plate and set aside.
2. Add the remaining 2 tablespoons of butter to the pan. Stir in the minced garlic, onion powder, oregano, red pepper flakes, and a good pinch of salt and pepper. Cook briefly until fragrant, about 30 seconds.
3. Sprinkle the flour over the garlic and spice mixture and whisk constantly for about one minute to cook the raw flour taste away and form a roux.
4. Slowly pour in the milk while whisking constantly to prevent lumps. Bring the mixture to a gentle simmer and cook for about one minute until it starts to thicken.
5. Remove the pan from the heat and add the cheddar and parmesan a handful at a time, stirring until each addition is fully melted and the sauce is smooth. Fold in the cooked pasta shells until evenly coated.
6. Top the sauced shells with the shredded provolone and return the caramelized mushrooms to the pan. Cover the skillet with a lid and allow the provolone to melt from the residual heat, or transfer the pan to a preheated 375°F oven for 5–10 minutes until the cheese is fully melted and bubbling.

Notes and tips

• Storage: Store leftovers in an airtight container in the refrigerator for up to 4 days. Reheat gently in the microwave or on the stove over low heat. Due to the dairy content, freezing is not recommended as texture and separation may occur.
• Cheese: Use freshly shredded cheese from a block. Pre-shredded cheese often contains anti-caking agents that prevent a smooth, creamy sauce.
• Cheese substitutions: If you don’t want three cheeses, increase the sharp cheddar and parmesan. Gruyère or fontina can replace provolone for a different, complementary flavor.
• Mushrooms: Brown mushrooms like baby bella or cremini have more flavor than white button mushrooms and are preferred for this recipe.
• Herbs: Fresh herbs such as basil can be added if desired, and fresh garlic can be used instead of garlic powder for a brighter flavor.
• Pasta: Medium shells work best because they hold the cheese sauce. Small shells or elbow macaroni can be used in a pinch.

Nutrition (approximate, per serving)

Serving size: about 1.5 cups • Calories: ~319 • Carbohydrates: ~14g • Protein: ~8g • Fat: ~16g • Sodium and other nutrients will vary depending on specific ingredients used. Use nutrition estimates as a general guideline.

Enjoy this warm, satisfying Mushroom Shells and Cheese as a main course or a comforting side. Its rich, layered flavors and creamy texture make it a reliable favorite for cold-weather dinners and mushroom lovers alike.

~ Nichole