Say goodbye to complicated dinners—this vegan mushroom rice casserole is here to simplify your life and satisfy your cravings. Ready in just 15 minutes of prep, it’s a one-pot wonder that’s as effortless as it is delicious.
With a creamy cashew sauce, savory mushrooms, and aromatic leeks, every bite is packed with rich, umami goodness. Customizable, comforting, and family-approved, it’s the perfect recipe for busy nights.
Minimal Chopping & Prepping Required
One of the best things about this Vegan Mushroom Rice Casserole is how little hands-on time it requires. By using frozen and dried mushrooms, you can skip the tedious task of cleaning and chopping fresh ones.
Simply give the leeks a quick chop, press the garlic, and you’re ready to assemble your casserole.
The recipe’s straightforward instructions make it virtually foolproof, even for novice cooks. As long as you follow the rice-to-water ratio and baking time, you’ll end up with perfectly cooked, creamy rice every time. This means less stress and more time to enjoy your delicious creation with loved ones.
Crunchy Breadcrumb Topping Complements Creamy Rice
While the star of this casserole is the creamy mushroom rice, the crunchy whole-wheat breadcrumb topping takes it to the next level. The contrast in textures elevates the dish from comforting to downright irresistible.
For those following a gluten-free diet, simply swap the whole-wheat breadcrumbs for gluten-free ones or omit them altogether. If you choose to leave out the breadcrumbs, be sure to keep the casserole covered with foil throughout the cooking process to ensure the rice cooks evenly.
Versatile & Adaptable for Any Palate
This Vegan Mushroom Rice Casserole is versatile, allowing you to cater to various tastes and preferences. If you’re cooking for someone who isn’t a fan of the earthy flavor of wild mushrooms, simply use more of the frozen variety, which melts into the creamy rice and becomes barely noticeable.
Feel free to experiment with different herbs, such as thyme, sage, or mint, to customize the dish. You can also adjust the amount of nutritional yeast in the cashew sauce to achieve your desired level of cheesiness.
With so many customization possibilities, this casserole is sure to become a go-to in your meal rotation.
Vegan Mushroom Rice Casserole
Ingredients
- 1 cup raw basmati rice
- 12 ounces frozen mushrooms used Trader Joe's Mushroom Medley which already has some spices and herbs added. You can use another kind, even if it's not seasoned, or use an equal quantity of fresh mushrooms.
- 1 cup dry shiitake mushrooms
- 1 tsp extra virgin olive oil
- 1 large or 2 small leeks green and white parts finely chopped
- 3 cloves garlic put through a garlic press or finely minced
- 1-2 tbsp fresh herbs basil and rosemary. Thyme, sage or mint would work here too.
- Salt and ground black pepper to taste
For the cashew cream sauce:
- ½ cup raw cashews
- 1 tsp onion powder
- 2 tbsp nutritional yeast
- ¼ cup fried onions make your own or use the storebought
- 2 ½ cups water
- Salt and ground black pepper to taste
For the breadcrumb topping:
- 1 cup whole-wheat or gluten-free bread crumbs
- 1 tsp rosemary
- ½ tsp ground black pepper
- 1 tsp extra virgin olive oil
- Salt to taste
Instructions
- Preheat the oven to 350°F (180°C).
- In a food processor or bowl, combine all the ingredients for the breadcrumb topping. Mix well and set aside.
- Place the dry mushrooms in a bowl and pour 1 ½ cups of hot water over them to reconstitute. Let them soak for at least 10 minutes while you prepare the other ingredients.
- In a blender, combine the raw cashews, 1 cup of water, onion powder, nutritional yeast, dried rosemary, and fried onions. Blend until a very smooth paste forms. If not using a high-speed blender, soak the cashews for 30 minutes before blending.
- Heat oil in a 12-inch cast-iron skillet. Sauté the leeks over medium-high heat for about 5 minutes until soft and beginning to brown. If not using a stove-to-oven skillet, use a regular skillet for steps 5-7, then transfer to an oven-safe baking dish before adding the breadcrumb topping.
- Add the garlic and fresh herbs to the skillet and continue to sauté. Add the frozen mushrooms and reconstituted dry mushrooms, reserving the soaking liquid. Cook for another 5 minutes, stirring frequently. If fresh mushrooms are used instead of frozen, sauté until most of their moisture has evaporated, which will take longer.
- Stir in the rice and cook for a couple more minutes, mixing well. Turn off the heat. Pour in the cashew cream sauce and reserved mushroom stock. Mix thoroughly and adjust the seasoning with salt and black pepper to taste.
- Transfer the mixture to a casserole dish. Spread the prepared breadcrumb topping evenly over the casserole and cover it with aluminum foil.
- Place the skillet or casserole in the preheated oven. Bake for 45 minutes, then remove the foil and bake for another 15 minutes until the breadcrumb topping is golden brown. If omitting the topping, keep the casserole covered for the full hour of baking to prevent drying out.
- Remove the casserole from the oven and let it stand for 5 minutes before serving.
Nutrition
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Davin is a jack-of-all-trades but has professional training and experience in various home and garden subjects. He leans on other experts when needed and edits and fact-checks all articles.