This casserole is a perfect combination of tender chicken, earthy oyster mushrooms, fresh asparagus, and gooey mozzarella cheese baked to golden perfection. It’s a comforting dish that feels indulgent without being overly heavy, making it ideal for weeknight dinners or weekend gatherings. The medley of flavors from the sautéed vegetables, creamy sauce, and melted cheese comes together harmoniously, creating a dish that’s both hearty and wholesome. This casserole is also versatile—you can add herbs of your choice or swap out vegetables to suit your preferences, making it a family-friendly recipe that everyone will enjoy.

Full Recipe

Ingredients

400 g chicken breast, cut into bite-sized pieces
200 g oyster mushrooms, cleaned and sliced
200 g asparagus, trimmed and cut into 2-inch pieces
1 medium onion, finely chopped
3 cloves garlic, minced
200 ml heavy cream or half-and-half
100 g mozzarella cheese, shredded
2 tablespoons olive oil
1 teaspoon dried thyme or Italian herbs
1 teaspoon paprika
Salt and black pepper, to taste
2 tablespoons all-purpose flour (optional, for thickening)
Fresh parsley, chopped, for garnish

Cooking Directions

Preheat the oven to 180°C (350°F) and grease a medium-sized casserole dish with a bit of olive oil or butter.
Heat olive oil in a large skillet over medium heat. Add the chopped onion and sauté for 3–4 minutes until soft and translucent.
Add the minced garlic to the skillet and cook for another 1–2 minutes, stirring frequently to avoid burning.
Add the chicken pieces to the skillet, season with salt, black pepper, paprika, and thyme, and cook until the chicken is lightly browned on all sides but not fully cooked through, about 5–6 minutes.
Stir in the oyster mushrooms and cook for 3–4 minutes until they start to soften.
Add the asparagus pieces and cook for 2–3 minutes until they turn bright green but still have a slight crunch.
If you prefer a thicker sauce, sprinkle the flour over the mixture and stir well to coat all ingredients. Cook for 1–2 minutes to remove the raw flour taste.
Pour the cream over the chicken and vegetables, stirring gently to combine. Let it simmer for 2–3 minutes until the sauce thickens slightly. Adjust seasoning with more salt and pepper if needed.
Transfer the mixture to the prepared casserole dish. Spread it evenly and sprinkle the shredded mozzarella cheese generously on top.
Bake in the preheated oven for 20–25 minutes until the cheese is melted, bubbly, and slightly golden on top.
Remove the casserole from the oven and let it cool for 5 minutes before serving. Garnish with freshly chopped parsley for a touch of freshness and color.

Nutrients

Calories: ~320 per serving
Protein: 28 g
Carbohydrates: 8 g
Fat: 18 g
Fiber: 2 g
Sodium: 420 mg

Why You’ll Love This Recipe

This casserole is ideal for anyone looking for a one-dish meal that’s both nutritious and comforting. It’s loaded with protein from the chicken, healthy fats from olive oil and cream, and vitamins from asparagus and mushrooms. The combination of tender chicken, earthy mushrooms, and fresh asparagus is perfectly balanced with the creaminess of mozzarella, making each bite satisfying and indulgent. Additionally, it’s incredibly easy to prepare—most of the cooking is done in a single skillet before finishing in the oven, making cleanup minimal.

The Origins and Inspiration Behind the Dish

Casseroles have long been a staple in home cooking, known for their versatility and convenience. This particular recipe draws inspiration from European-style baked dishes that combine fresh vegetables, tender proteins, and rich cheeses. Oyster mushrooms, with their delicate flavor and meaty texture, add a gourmet touch, while asparagus brings freshness and a pop of color. Inspired by comfort foods but with a modern twist, this casserole is designed to be both elegant enough for guests and easy enough for a weeknight family dinner.

Ingredient Spotlight

Chicken breast provides lean protein and acts as a hearty base for the casserole. Oyster mushrooms contribute a subtle earthy flavor and a meaty texture that pairs beautifully with chicken. Asparagus adds a fresh, slightly sweet note and bright green color, while mozzarella melts into creamy pockets throughout the dish. Olive oil enhances flavor and adds a touch of richness, and the combination of thyme, paprika, and garlic brings aromatic depth to every bite.

Storage and Reheating Tips

This casserole can be prepared ahead of time and stored in an airtight container in the refrigerator for up to 3 days. To reheat, place the casserole in a 180°C (350°F) oven for 10–15 minutes until warmed through and the cheese is bubbly again. Freezing is also an option—wrap tightly with foil and freeze for up to 2 months. Thaw overnight in the refrigerator and bake for 20–25 minutes to restore the creamy texture. Leftover portions can be served on their own or paired with a simple side salad.

Common Variations to Try

You can easily adapt this casserole to suit your taste or dietary needs. Swap chicken for turkey or lean pork, or go vegetarian by using tofu or extra mushrooms. Add other seasonal vegetables like bell peppers, zucchini, or spinach for more color and nutrition. For a cheesy upgrade, use a blend of mozzarella and Gruyère or fontina for a richer flavor. You can also experiment with herbs—basil, rosemary, or tarragon work beautifully in place of thyme.

Pairing Recommendations

Serve this casserole as a main dish alongside a crisp green salad, garlic bread, or a side of roasted root vegetables. It pairs wonderfully with a light white wine such as Sauvignon Blanc or a soft red like Pinot Noir. For a casual family meal, enjoy it with steamed rice, quinoa, or whole grain pasta to soak up the creamy sauce.

Health Benefits

This casserole is high in protein, which supports muscle repair and satiety. Asparagus provides essential vitamins and minerals including folate, vitamin K, and vitamin C, while mushrooms are a source of antioxidants and immune-supporting compounds. Using olive oil instead of heavy butter helps reduce saturated fat content, and the moderate portion of cheese provides calcium without overwhelming the dish with calories. Overall, it’s a balanced, nutrient-rich meal that satisfies the whole family.

Conclusion

The Hearty Chicken & Asparagus Casserole with Oyster Mushrooms and Mozzarella is a versatile, flavorful, and wholesome dish that fits perfectly into weeknight dinners, meal prep, or special occasions. Its combination of tender chicken, earthy mushrooms, fresh asparagus, and gooey mozzarella makes it comforting yet sophisticated. With minimal preparation and maximum flavor, it’s a recipe that will become a favorite in your kitchen, offering both convenience and indulgence in every bite.

0 Shares