Chicken, Spinach, Mushroom, & Cheese Lasagna Casserole

The aroma of lasagna always takes me back to my grandmother’s kitchen. Every Sunday, the scent of simmering tomato sauce and bubbling cheese would fill her home, a comforting promise of the delicious feast to come. While her traditional recipe was a labor of love, this Chicken, Spinach, Mushroom, & Cheese Lasagna Casserole captures that same comforting essence, but with a quicker, easier approach perfect for busy weeknights. It’s a symphony of savory flavors and textures, all melded together in a cheesy, satisfying casserole that warms the soul.

Recipe Overview

• Prep Time: 20 minutes
• Cook Time: 60 minutes
• Total Time: 1 hour 20 minutes
• Servings: 6
• Yield: One 8×8 inch casserole
• Dietary Type: Not Gluten-Free

Ingredients

• 1 (10 ounce) package frozen chopped spinach, thawed
• 1 tablespoon butter
• 3 (6 ounce) skinless chicken breasts, diced
• 1/4 cup onion, chopped
• 1 (8 ounce) package mushrooms (sliced fresh baby portobello recommended)
• 1 (10 3/4 ounce) can cream of mushroom soup
• 2 tablespoons cream cheese
• 1 (8 ounce) container sour cream
• 1/2 teaspoon pepper
• 1/4 teaspoon salt
• 2 cups cheddar cheese, shredded
• 6 no-boil lasagna noodles
• 3 tablespoons parmesan cheese, grated

Equipment Needed

• Large saucepan
• 8×8 inch baking dish
• Paper towels
• Oven

Instructions

1. Preheat your oven to 350°F (175°C).
2. Thaw the frozen chopped spinach completely. Once thawed, drain the spinach very well. The best method is to place the spinach between several layers of paper towels and press firmly to remove excess moisture. This prevents the casserole from becoming watery.
3. In a large saucepan, melt 1 tablespoon of butter over medium-high heat.
4. Add the diced chicken breasts and chopped onion to the melted butter. Sauté for about 5 minutes, or until the chicken starts to brown and the onion becomes translucent.
5. Add the sliced mushrooms to the saucepan with the chicken and onion. Continue to sauté for another 5 minutes, or until the chicken is fully cooked and the mushrooms are tender. Make sure the chicken reaches an internal temperature of 165°F (74°C) for food safety. Remove the saucepan from the heat.
6. To the saucepan, stir in the cream cheese, drained spinach, cream of mushroom soup, sour cream, pepper, and salt. Mix all ingredients thoroughly until well combined.
7. Gently fold in the shredded cheddar cheese into the chicken and spinach mixture, reserving a small amount for topping if desired.
8. Lightly grease an 8×8 inch baking dish.
9. Spoon 1/4 of the chicken mixture into the prepared baking dish, spreading it evenly across the bottom.
10. Arrange 2 of the no-boil lasagna noodles on top of the chicken mixture. You may need to break the noodles slightly to fit them snugly in the dish.
11. Repeat the layers twice more: Spread another 1/4 of the chicken mixture, then arrange 2 more lasagna noodles.
12. Top with the remaining chicken mixture, spreading it evenly over the final layer of noodles.
13. Sprinkle the top of the casserole with the grated parmesan cheese. If you reserved some cheddar cheese, you can sprinkle that on top as well for extra cheesy goodness.
14. Cover the baking dish with aluminum foil.
15. Bake the casserole, covered, at 350°F (175°C) for 45 minutes.
16. Remove the foil and bake for an additional 15 minutes, or until the casserole is bubbly and the cheese is melted and lightly browned.
17. Let the casserole cool for about 10-15 minutes before slicing and serving. This allows the flavors to meld together and prevents the casserole from being too runny.

Expert Tips & Tricks

• Don’t skip the spinach draining step! Excess moisture will make your lasagna soggy. Squeeze it as dry as you possibly can.
• For a richer flavor, try using a blend of cheeses. Mozzarella, provolone, or even a little bit of Monterey Jack would be delicious additions.
• If you want to add a little kick, incorporate a pinch of red pepper flakes or a dash of hot sauce into the chicken mixture.
• To prevent the lasagna noodles from sticking, lightly spray them with cooking spray before layering.
• If you’re short on time, you can assemble the casserole ahead of time and store it in the refrigerator for up to 24 hours before baking. Add about 10-15 minutes to the baking time if baking from cold.

Serving & Storage Suggestions

Serve the Chicken, Spinach, Mushroom, & Cheese Lasagna Casserole warm, either on its own or with a side salad and some garlic bread. A simple green salad with a light vinaigrette provides a refreshing contrast to the richness of the casserole.

Leftovers can be stored in an airtight container in the refrigerator for up to 3-4 days. To reheat, simply microwave individual portions or bake the entire casserole in a preheated oven at 350°F (175°C) until heated through.

For longer storage, the casserole can be frozen for up to 2-3 months. Wrap it tightly in plastic wrap and then foil, or store it in a freezer-safe container. Thaw in the refrigerator overnight before reheating.

Nutritional Information

Nutrient	Amount per Serving	% Daily Value
Calories	449.6 kcal	N/A
Calories from Fat	267 g	60%
Total Fat	29.8 g	45%
Saturated Fat	17 g	85%
Cholesterol	121.6 mg	40%
Sodium	841.3 mg	35%
Total Carbohydrate	9.9 g	3%
Dietary Fiber	2 g	7%
Sugars	2.4 g	9%
Protein	36.6 g	73%

Variations & Substitutions

• Gluten-Free: Use gluten-free lasagna noodles and cream of mushroom soup.
• Vegetarian: Omit the chicken and add more mushrooms or other vegetables like zucchini, bell peppers, or eggplant.
• Cheese Variations: Experiment with different types of cheese, such as mozzarella, provolone, or ricotta.
• Spice it up: Add a pinch of red pepper flakes or a dash of hot sauce to the chicken mixture for a little heat.
• Herby Flavor: Incorporate fresh herbs like basil, oregano, or thyme into the chicken mixture for a more aromatic flavor.

FAQs (Frequently Asked Questions):

Q: Can I use regular lasagna noodles instead of no-boil noodles?
A: Yes, but you’ll need to pre-cook the regular lasagna noodles according to the package directions before assembling the casserole.

Q: Can I make this casserole ahead of time?
A: Absolutely! Assemble the casserole and store it in the refrigerator for up to 24 hours before baking. Add about 10-15 minutes to the baking time if baking from cold.

Q: What can I substitute for cream of mushroom soup?
A: You can use cream of chicken soup or make your own white sauce with mushrooms.

Q: Can I freeze this lasagna casserole?
A: Yes, you can freeze the casserole for up to 2-3 months. Wrap it tightly in plastic wrap and then foil, or store it in a freezer-safe container. Thaw in the refrigerator overnight before reheating.

Q: The casserole seems watery, what did I do wrong?
A: The most common cause of a watery casserole is not draining the spinach thoroughly enough. Be sure to squeeze out as much moisture as possible before adding it to the mixture.

Final Thoughts

I hope you enjoy this Chicken, Spinach, Mushroom, & Cheese Lasagna Casserole as much as my family and I do. It’s a versatile and comforting dish that’s perfect for any occasion. Feel free to experiment with different variations and substitutions to make it your own. And don’t hesitate to share your feedback and creations with me! This casserole pairs wonderfully with a crisp Caesar salad and a glass of chilled Pinot Grigio. Happy cooking!