Wild Mushroom Gratin

Wild Mushroom Gratin

Wild Mushroom Gratin

A simple and delicious wild mushroom gratin.  I've used cauliflower mushrooms here because we had found a large, fresh one this year and despite it's delicate appearance, it keeps a nice firm texture once cooked.  This would be wonderful with other wild mushrooms too, like chanterelles or a mixture of soft and firm mushrooms like lobster and oyster.  I added spinach for the color and vitamins but my husband and daughter both preferred this without spinach so feel free to omit it if you don't love cooked spinach.

Course Dinner, Side Dish, Vegetable
Cuisine canadian, Mushrooms, PNW, Vegetarian, West Coast, Wild Food
Keyword casserole, gratin, Mushroom, Wild Mushroom
Prep Time 20 minutes
Cook Time 20 minutes
Total Time 40 minutes
Servings 6
Author Sabrina Currie


  • 6 c Wild Mushrooms, Washed And Cut Into 1-2 " Pieces
  • 2 tbsp Olive Oil
  • 1 c Vegetable Stock
  • 1 c Sour Cream (Light is fine but not fat free)
  • 2 c Spinach (Optional)
  • 1 c Grated Old Cheddar, Divided Gruyere is also delicious
  • Salt And Pepper To Taste

Bread Crumb Mixture

  • 1 1/2 c Dry Bread
  • 2 cloves Garlic
  • 1/2 c Parsley
  • 1/2 tsp Salt


  1. Preheat oven to 350'F

    Creamy Cheesy Vegetarian Wild Mushroom Side Dish
  2. Make the bread crumb mixture by pulsing garlic, parsley and salt in a food processor until the garlic is chopped well, then add the bread and pulse until it is an even fine bread crumb mixture. 

    Bread Crumb Parsley and Garlic Topping For Gratin
  3. Heat the oil in a large pan on medium, once heated, add the mushrooms and saute until they are cooked down and liquid is gone, then add stock and simmer until liquid is reduced by half.

    Cooking Cauliflower Mushrooms
  4. Add sour cream, 1/2 cup of the cheese, and spinach if using.  Stir gently to incorporate and wilt spinach, then add 1/2 of the bread crumb mixture and stir in. Season to taste with salt and pepper then scrape mixture into an oven safe 9x7 baking dish.

    Sour Cream Parsley and Wild Mushrooms
  5. Mix bread crumbs and remaining 1/2 cup of cheese together and sprinkle evenly over mushroom mixture and bake in oven until browned on top, approximately 20 minutes. 

    Wild Mushroom Gratin Ready To Bake