Ingredients
Equipment
Method
- Preheat your oven to 350°F (175°C). This ensures your casserole will bake evenly and come out perfectly golden on top.
- In a large skillet, heat the olive oil over medium heat. Once hot, add the diced onion. Sauté until translucent, about 5 minutes. You want them soft and aromatic, signaling that they’re ready for the next layer.
- Add the minced garlic and sliced mushrooms to the skillet. Season this mixture with thyme, salt, and black pepper. Cook until the mushrooms are tender and have released their moisture, around 7 minutes. The mixture should smell heavenly!
- In a separate bowl, combine the grated mozzarella cheese and Parmesan cheese. This cheesy mixture will create a creamy layer in your casserole.
- Transfer the sautéed mushroom mixture into a greased baking dish. Spread it evenly across the bottom. This is where the magic begins!
- Sprinkle the cheese mixture evenly over the top of the mushroom layer. Make sure to cover it well so every bite is cheesy goodness.
- Next, sprinkle the whole-wheat breadcrumbs over the cheese. This will create a beautiful, crispy topping that contrasts the creamy filling.
- Place the baking dish in your preheated oven and bake for 20 minutes. You’re looking for a golden-brown top that’s bubbly and inviting!
- Once done, carefully remove the casserole from the oven and let it cool slightly before serving. The aroma will fill your kitchen, drawing everyone to the table.
Notes
Leftovers can be stored in an airtight container in the refrigerator for up to 3 days. Freezing is also an option; cool completely before freezing. Pair it with a fresh green salad for a complete meal. Feel free to adjust the recipe with seasonal vegetables. Gluten-free breadcrumbs can be used for dietary restrictions.