A rustic wooden table with a 9x13 inch casserole dish filled with mushroom and barley casserole, garnished with fresh parsley.

Casseroles

mushroom and barley casserole

By:

Savory Touch

Published:

25 Apr 2025
This hearty and flavorful Mushroom and Barley Casserole is the perfect comfort food for a chilly evening or a cozy weekend brunch. It’s simple to make, packed with delicious earthy flavors, and incredibly satisfying. I first made this recipe for a friend's potluck; I was nervous because I'm not the best cook, but it was a huge hit!
Close up shot of a golden brown mushroom and barley casserole bubbling in a baking dish.
The combination of tender barley, savory mushrooms, and melted cheese creates a dish that’s both comforting and elegant. It’s also incredibly versatile; feel free to adjust the ingredients to your liking. Add some spinach, different types of cheese, or even some crispy fried onions for extra texture. It's your creation now!
A serving of mushroom and barley casserole on a plate, garnished with fresh parsley.

Required Equipments

  • 9x13 inch baking dish
  • large saucepan
  • measuring cups and spoons
  • wooden spoon or spatula

Mushroom and Barley Casserole

A simple yet satisfying casserole featuring tender barley, earthy mushrooms, and a delicious blend of cheeses. Perfect for a weeknight dinner or a special occasion!

⏳ Yield & Time

Yield: 6 servings

Preparation Time: 10 minutes

Cook Time: 30 minutes

Total Time:

🍽 Ingredients

📖 Instructions

  1. Preheat your oven to 375°F (190°C). Grease a 9x13 inch baking dish. Set aside.
  2. In a large saucepan, heat 2 tablespoons of olive oil over medium heat. Add 1 chopped onion and cook until softened, about 5 minutes. Don't burn it! (Been there, done that, learned my lesson the hard way.)
  3. Add 1 pound of sliced mushrooms to the pan. Cook, stirring occasionally until they release their moisture and start to brown, about 8-10 minutes. Season generously with salt and pepper.
  4. Stir in 1 cup of pearl barley and 4 cups of vegetable broth. Bring to a boil, then reduce heat, cover, and simmer for about 25-30 minutes, or until the barley is tender. Stir occasionally to prevent sticking. If it gets too dry, add a bit more broth.
  5. Remove the saucepan from the heat and stir in 1 cup of grated cheddar cheese, 1/2 cup of chopped fresh parsley, and 1/4 cup of grated Parmesan cheese. Mix everything well. Taste and adjust the seasoning if needed. I always add a pinch more pepper, personally.
  6. Pour the mushroom and barley mixture into the prepared baking dish. Spread evenly. Sprinkle remaining Parmesan cheese over the top.
  7. Bake for 20-25 minutes, or until bubbly and golden brown. Keep an eye on it; ovens vary wildly!
  8. Let the casserole rest for about 10 minutes before serving. This helps the flavors meld and makes it easier to serve without a gooey mess. Trust me on this one;

📝 Notes

  • For a richer flavor, saute the mushrooms in butter instead of olive oil.
  • Feel free to add other vegetables, such as carrots, celery, or spinach.
  • If you don't have vegetable broth, you can use chicken broth or water instead, although the flavor will be slightly different. Chicken broth will add another layer of deliciousness!

🍎 Nutrition

Calories: 350 kcal

Protein: 15 g

Fat: 10 g

Carbohydrates: 50 g

Fiber: 5 g

Calcium: 150 mg

Frequently Asked Questions

The best way to find yourself is to lose yourself in the service of others. - Mahatma Gandhi (This may seem random, but cooking for others is a really wonderful thing, and this recipe is perfect for sharing!)

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