Go Back
+ servings
Mushroom Wild Rice Casserole l SimplyScratch.com #easy #homemade #mushroom #wildrice #casserole #nocannedsoup #fromscratch #thanksgiving #holiday #recipe

Mushroom Wild Rice Casserole

Print Recipe
Creamy and delicious, this Mushroom Wild Rice Casserole is made 100% from scratch. Sautéed onions, garlic, mushrooms and thyme are mixed in a cream sauce without opening a can of cream of mushroom soup. Topped with gruyere for a  delicious nutty flavor. Serves 10 in about an hour.
Course Side Dishes
Cuisine American
Keyword casserole, Christmas, holiday, rice, Thanksgiving, wild rice
Prep Time 5 mins
Cook Time 30 mins
Additional Time 5 mins
Total Time 40 mins
Servings 10 servings
Calories 376
Author Laurie McNamara


  • 1 tablespoon olive oil
  • 1 medium yellow onion
  • 8 ounces mushrooms sliced
  • 1 cloves garlic minced
  • 1 teaspoon thyme chopped
  • 3 cups (cooked) wild rice blend
  • 1 recipe cream of mushroom soup
  • 1/2 cup vegetable broth
  • 1/2 cup heavy cream
  • 5 ounces gruyere shredded


  • Add olive oil, and yellow onion with a pinch of kosher salt to a deep sided skillet. Heat on medium-low and sauté until the onion is soft and translucent.
  • Once soft, add in the sliced mushrooms. Cook for 5 to 8 minutes or until the mushrooms are soft.
  • To that add in the garlic and fresh thyme. Stir and cook for 1 minute.
  • Turn off the heat under your skillet and add in the cooked wild rice blend, homemade cream of mushroom soup, vegetable (or chicken) broth and heavy cream. Stir until combined.
  • Lastly, add in 1/3 cup freshly shredded gruyere cheese and stir to incorporate.
  • Transfer the cheesy mushroom and rice mixture into a 3-1/2 quart baking dish that has been sprayed lightly with olive oil. Cover with foil and bake on the middle rack of your preheated 350° for 20 to 30 minutes or until bubbling. Rotate the pan halfway through baking.
  • Remove the casserole and preheate your broiler to high heat.
  • Sprinkle with the remaining gruyere.
  • Use oven mitts to adjust the oven rack to the highest position. Broil for a few minutes until the cheese is melted and golden.


Calories: 376kcal | Carbohydrates: 56g | Protein: 16g | Fat: 11g | Saturated Fat: 6g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 4g | Cholesterol: 32mg | Sodium: 106mg | Potassium: 414mg | Fiber: 5g | Sugar: 3g | Vitamin A: 358IU | Vitamin C: 2mg | Calcium: 171mg | Iron: 2mg