Description

Heavenly Mushroom Polenta Casserole is a comforting and creamy baked dish perfect for cozy family nights. Featuring a creamy polenta base infused with sautéed assorted mushrooms, garlic, and herbs, this casserole is topped with melted mozzarella and Parmesan cheeses for a rich, satisfying finish. It’s ideal for a hearty vegetarian meal that brings warmth and flavor to your table.

Ingredients

Scale

Polenta Base

1 cup Polenta (The star of the dish, providing a creamy texture.)
4 cups Vegetable Broth (Can substitute with chicken broth.)
1 teaspoon Salt (Essential for seasoning.)
1 teaspoon Black Pepper (Adds a touch of heat.)

Mushroom Mixture

2 tablespoons Olive Oil (Ideal for sautéing.)
1 medium Onion, diced (Creates a flavorful base.)
3 cloves Garlic, minced (Infuses the dish with aroma.)
16 ounces Assorted Mushrooms, sliced (Cremini, shiitake, and button recommended.)
1 teaspoon Dried Thyme (Enhances mushroom flavor.)

Cheese Topping

1 cup Mozzarella Cheese, shredded (Provides melty goodness.)
½ cup Parmesan Cheese, grated (Adds nutty flavor.)

Garnish

1 tablespoon Fresh Parsley (Optional garnish for freshness.)

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Instructions

Prepare the Polenta: In a large saucepan, bring the vegetable broth to a boil. Gradually whisk in the polenta, reducing the heat to low. Cook, stirring frequently, until the polenta thickens and becomes creamy, about 15 minutes. Stir in salt and black pepper to season the polenta, then remove from heat.
Sauté the Vegetables: While the polenta cooks, heat olive oil in a large skillet over medium heat. Add diced onion and sauté until translucent, about 5 minutes. Add minced garlic and cook for an additional 1 minute until fragrant.
Cook the Mushrooms: Add the sliced assorted mushrooms to the skillet with the onions and garlic. Cook for about 8-10 minutes, stirring occasionally, until the mushrooms have released their moisture and are nicely browned. Stir in dried thyme and adjust seasoning with salt and pepper as needed.
Assemble the Casserole: Preheat your oven to 375°F (190°C). Spread half of the creamy polenta evenly into a greased casserole dish. Layer the sautéed mushroom mixture over the polenta, then cover with the remaining polenta, smoothing the top.
Add Cheese and Bake: Sprinkle shredded mozzarella and grated Parmesan evenly over the polenta layer. Bake the casserole in the preheated oven for 20-25 minutes, or until the cheese is melted, bubbly, and golden on top.
Garnish and Serve: Remove the casserole from the oven and let it rest a few minutes. Sprinkle fresh parsley over the top for a bright, fresh finish. Cut into slices and serve warm for a comforting family meal.

Notes

You can substitute vegetable broth with chicken broth for a slightly different flavor.
For a vegan version, use plant-based cheeses or omit the cheese topping.
Make sure to stir the polenta frequently to prevent lumps and ensure a smooth texture.
This casserole can be prepared a day ahead and reheated before serving.
Add a pinch of red chili flakes to the mushroom mixture if you prefer a spicy kick.

Prep Time: 15 minutes
Cook Time: 30 minutes
Category: Main Course
Method: Baking
Cuisine: Italian-inspired