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Cheesy Chicken and Mushroom Casserole

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Cheesy Chicken and Mushroom Casserole is exactly what you need when you are craving a taste of home. It's the kind of thing your grandmother would make for you on a cold day when you've been out playing in the snow. It is comfort food at its best, and I'm excited to share this recipe with you.

Jump to:
  • Ingredients
  • Prep
  • Cooking
  • Finishing the Chicken and Mushroom Casserole
  • Recipe
  • Final Thoughts

This casserole is a great example of how properly preheating your pan makes all the difference -- you want a good sear on that chicken before everything goes in the oven. If you're looking for another satisfying one-pot meal, my Quinoa Clubhouse Bowl is a lighter take on comfort food that comes together just as easily.

Cheesy chicken and mushroom casserole in a skillet with melted cheese on top

Ingredients

The ingredients for the chicken and mushroom casserole are olive oil, chicken breast, mushrooms, onions, garlic, chicken stock, rosemary, parsley, basmati rice, mozzarella cheese, cheddar cheese, salt, and pepper.

All casserole ingredients arranged on the counter
Chicken breasts on a cutting board
Fresh cremini mushrooms
Onions and garlic cloves
Fresh rosemary and parsley
Basmati rice measured in a cup
Grated mozzarella and cheddar cheese

Prep

The prep for the cheesy chicken and mushroom casserole is to slice the mushrooms, onion, garlic, and chicken breast. Chop the herbs. Grate the cheese and measure out the rice and chicken stock.

In total, you want about:

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  • 1 cup sliced mushrooms
  • 1 to 1 ½ cups sliced onion
  • 1 teaspoon sliced garlic
  • 2 teaspoons minced rosemary
  • ¼ cup chopped parsley
  • 1 cup grated mozzarella
  • 1 cup grated cheddar cheese
  • 1 cup basmati rice
  • 2 cups chicken stock
Slicing mushrooms on a cutting board
Sliced onions ready for the casserole
Garlic sliced thinly
Chicken breast sliced into strips
Rosemary and parsley chopped
All prepped ingredients arranged in bowls

Cooking

Heat a large oven-safe skillet over medium-high heat. Season the chicken with salt and pepper. Add in 2 tablespoons of olive oil along with the sliced chicken. Cook the chicken for 2 to 3 minutes per side or until browned. Add in the onions and mushrooms and cook for another 3 minutes. Add the garlic, cook for 1 minute, then add the herbs, chicken stock, rice and seasoning. Bring the stock to a boil and take it off the heat.

Olive oil heating in the oven-safe skillet
Chicken browning in the skillet
Onions and mushrooms added to the chicken
Garlic cooking with the vegetables
Herbs and rice added to the skillet
Chicken stock poured into the pan
Casserole mixture coming to a boil
Everything combined in the skillet before going in the oven

Finishing the Chicken and Mushroom Casserole

To finish the cheesy chicken and mushroom casserole, stir half the cheese into the pan, then sprinkle the rest over the top. Cover the pan with a tight-fitting lid or foil, and bake for 25 minutes at 350°f. Take the pan out of the oven and let it rest, covered, for 5 minutes. Take the lid off and serve, or put it under the broiler for a few minutes to brown the cheese.

Stirring cheese into the casserole
Remaining cheese sprinkled on top of the casserole
Casserole covered with foil before going in the oven
Casserole going into the 350 degree oven
Finished casserole with melted cheese on top
Close-up of the cheesy chicken and mushroom casserole
Serving the casserole with a spoon

Recipe

Cheesy Chicken and Mushroom Casserole

A taste of home in every bite. Chicken, mushroom, rice and cheese. What more could you want in a casserole?
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Prep Time: 15 minutes minutes
Cook Time: 40 minutes minutes
Total Time: 55 minutes minutes
Course: Main Course
Cuisine: Canadian
Keyword: Casserole, Chicken, Mushroom
Servings: 6 servings
Author: Chef Ben Kelly

Ingredients

  • 2 tablespoons olive oil
  • 2 chicken breasts sliced
  • 1 cup sliced cremini mushrooms
  • 2 cups sliced onion
  • 1 teaspoon sliced garlic
  • 2 cups chicken stock
  • 2 teaspoon minced rosemary
  • ¼ cup chopped parsley
  • 1 cup basmati rice
  • 1 teaspoon kosher salt
  • ½ teaspoon pepper
  • 1 cup grated cheddar cheese
  • 1 cup grated mozzarella cheese

Instructions

  • Preheat your oven to 350°f
  • Heat a large oven-safe skillet over medium-high heat. Add in the olive oil and sliced chicken breast. Cook until the chicken is browned on both sides. 2 to 3 minutes per side
  • Add the onions and mushrooms, cook for 3 minutes, then add the garlic and cook for 1 minute.
  • Pour the chicken stock into the pan along with the rosemary, parsley, rice, salt, and pepper. Bring to a boil. Take the pan off the heat, mix in half the cheese and top with the cheese. Cover with a tight-fitting lid or foil and bake for 25 minutes or until the rice is tender. Let the casserole sit for 5 minutes, then enjoy.
  • If you'd like to crisp the cheese, take the lid off the pan and put it under your broiler for a minute or two.
Tried this recipe?Let us know how it was!

Final Thoughts

This casserole is one of those meals I come back to whenever I want something warm and satisfying without a lot of fuss. Everything cooks in one skillet, the rice absorbs all that chicken stock flavour, and the melted cheese on top is just the right finishing touch.

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Welcome!

I'm Ben. A Red Seal Chef from Canada who is passionate about teaching people about food and cooking. Welcome to Chef's Notes.

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