Vegan Broccoli Casserole is the perfect plant-based twist on a classic holiday dish. With its rich cashew milk sauce, tender broccoli, and flavorful mushrooms, this dish is a crowd-pleaser, whether it’s Thanksgiving, Christmas, or just a family dinner. The combination of creamy sauce and crispy toppings ensures that every bite is satisfying and full of flavor.

Vegan Broccoli Casserole with cashew milk sauce and crispy topping

Why Choose Vegan Broccoli Casserole?

This vegan broccoli casserole stands out as an easy, healthy, and versatile dish. It’s dairy-free, making it suitable for those following a plant-based or vegan lifestyle. The recipe is quick to prepare, taking only 35 minutes from start to finish, and it’s an excellent side dish for any meal. Plus, the use of cashew milk and mushrooms enhances the dish’s creamy texture and umami flavor, making it a hit with vegans and non-vegans alike. It’s also a great option for those looking for a gluten-free or WFPB (Whole Food Plant-Based) recipe.

Ingredients for Vegan Broccoli Casserole

  • Broccoli florets: Adds texture and nutrition, offering a bright, fresh flavor that complements the creamy sauce.
  • Oyster mushrooms (or any variety like shiitake): Provides a savory depth, making the casserole hearty and satisfying.
  • Yellow onion: Brings sweetness and balance to the dish when sautéed.
  • Dry white wine: Enhances the flavor of the mushrooms and adds a bit of acidity to the sauce.
  • Cashew milk: A creamy, dairy-free base that helps create the smooth texture of the casserole sauce.
  • Whole wheat pastry flour (or gluten-free flour): Used to thicken the sauce and provide a hearty consistency.
  • Nutritional yeast: Adds a cheesy flavor, making the casserole indulgent without any dairy.
  • Onion powder and garlic powder: Essential for seasoning, giving the dish a savory flavor.
  • Sea salt: Balances the flavors and enhances the overall taste.
  • Fresh thyme: Offers a fragrant, herbal note that pairs beautifully with the other ingredients.

Alternative Ingredient Suggestions

If you’re looking to make this dish your own, there are a few ingredient swaps to consider:

  • Non-dairy milk: If you don’t have cashew milk, any other unsweetened plant-based milk (like almond or soy) can work in its place.
  • Mushrooms: If you’re not a fan of mushrooms, try using zucchini or cauliflower for a different texture.
  • Gluten-free option: Swap the flour for rice flour or chickpea flour to make the casserole gluten-free.
  • Toppings: If you prefer a different crunch, opt for panko breadcrumbs, crushed corn flakes, or even crumbled salty crackers.

Step-by-Step Instructions

  1. Prepare the Broccoli: Steam or boil the broccoli florets until just tender but still firm (avoid overcooking). Set aside.
  2. Sauté the Onion: In a medium skillet, sauté the diced yellow onion in a drizzle of olive oil (or a splash of water for a WFPB-compliant version) until translucent.
  3. Add the Mushrooms: Toss in the mushrooms along with a pinch of sea salt. Cook until they begin to wilt, then add the white wine and thyme. Let it cook until the liquid has mostly evaporated.
  4. Make the Sauce: In a small bowl or blender, combine cashew milk, flour, nutritional yeast, onion powder, garlic powder, and sea salt. Stir until smooth.
  5. Combine Ingredients: Pour the sauce into the pan with the mushrooms, mixing well. Let it simmer until thickened.
  6. Add Broccoli: Stir the cooked broccoli into the mushroom mixture, making sure everything is coated in the creamy sauce.
  7. Transfer to a Casserole Dish: Pour the mixture into a broiler-safe casserole dish. Top with your choice of crispy onions, crackers, or breadcrumbs.
  8. Broil: Place the casserole under the broiler for a few minutes until the top is golden brown and crispy.
  9. Serve: Remove from the oven and serve hot. Enjoy your creamy, vegan broccoli casserole!
Vegan Broccoli Casserole with cashew milk sauce and crispy topping

Tips & Tricks

  • Check for doneness: When preparing the broccoli, make sure to steam or boil it until al dente—overcooked broccoli will lose its vibrant color and texture.
  • Make-ahead: This casserole can be prepared in advance and stored in the fridge for up to 3 days. Just reheat it in the oven before serving.
  • Storage: Store any leftovers in an airtight container in the fridge for up to 3 days. For longer storage, freeze it for up to 1 month. Reheat in the oven or microwave.
  • Flavor Enhancements: For a richer flavor, try adding a splash of tamari or soy sauce to the mushroom mixture, or stir in some vegan cheese for extra creaminess.

Pairing Ideas and Variations

Vegan broccoli casserole is a versatile dish that can be paired with a variety of main courses. It’s a perfect side dish for vegan holiday meals like Thanksgiving or Christmas, complementing dishes like Vegan Mac and Cheese or Vegan Holiday Roast. Here are a few pairing ideas:

  • For a Heartier Meal: Serve it alongside roasted vegetables or Vegan Steaks for a filling meal.
  • For a Comforting Meal: Pair it with creamy mashed potatoes or a side of Vegan Stuffing.
  • Add Protein: For a more substantial dish, mix in some soy curls or tempeh to add extra protein and texture.

Vegan Broccoli Casserole for Every Occasion

Whether you’re looking to create a side dish for a special holiday dinner or want a comforting meal for the family, this vegan broccoli casserole is the answer. It’s simple, delicious, and full of wholesome ingredients, making it the perfect choice for those seeking a healthy, dairy-free meal. Enjoy the versatility of this dish by customizing it to your taste preferences or dietary needs.

Conclusion: Enjoy Your Vegan Broccoli Casserole!

In conclusion, Vegan Broccoli Casserole is not only a flavorful and satisfying dish, but it also serves as the perfect vegan side dish for any occasion. Its creamy texture, savory mushrooms, and vibrant broccoli, all complemented by crispy toppings, make it a dish that everyone will enjoy, whether vegan or not. This recipe is easy to prepare, adaptable for dietary preferences, and guaranteed to please a crowd. Whether you’re serving it at a holiday dinner or as part of a weekly meal rotation, this dish is sure to become a family favorite. So, go ahead, make this delicious vegan broccoli casserole, and savor the comforting flavors it brings to your table!

Frequently Asked Questions (FAQs)

Can I make Vegan Broccoli Casserole ahead of time?

Yes, you can prepare this casserole ahead of time. Assemble the casserole and store it in the fridge for up to 3 days before baking. To reheat, simply broil it for a few minutes to crisp the topping and warm the dish through. You can also freeze the casserole for up to one month—just be sure to store it in an airtight container.

Can I substitute other vegetables for the broccoli?

Absolutely! While broccoli is the star of this recipe, you can substitute it with cauliflower, Brussels sprouts, or even green beans. Just make sure to cook them until they’re tender but not mushy to maintain the perfect texture in your casserole.

How can I make this recipe gluten-free?

To make this Vegan Broccoli Casserole gluten-free, simply swap the whole wheat flour for rice flour or chickpea flour. Also, use gluten-free breadcrumbs or crushed gluten-free crackers as a topping to keep the dish fully compliant with gluten-free diets.

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Vegan Broccoli Casserole

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Vegan Broccoli Casserole is a delicious, plant-based dish with steamed broccoli, sautéed mushrooms, and a creamy cashew milk sauce. Topped with crispy onions or breadcrumbs, it’s the perfect vegan side dish for any meal, especially during the holidays.

  • Author: Daisy
  • Prep Time: 10 minutes
  • Cook Time: 25 minutes
  • Total Time: 35 minutes
  • Yield: 4 servings 1x
  • Category: Side Dish
  • Method: Baking
  • Cuisine: American

Ingredients

Scale
  • 1 lb broccoli florets
  • 3/4 lb oyster mushrooms (or other mushrooms like shiitake or trumpet)
  • 1 small yellow onion, diced
  • 1/4 cup dry white wine
  • 2.25 cups cashew milk
  • 2 tbsp whole wheat pastry flour (or gluten-free flour)
  • 1 tbsp nutritional yeast
  • 2.5 tsp onion powder
  • 1/2 tsp garlic powder
  • 1/2 tsp sea salt
  • 6 sprigs fresh thyme
  • Optional toppings: crispy onions, salty crackers, panko breadcrumbs, or corn flakes cereal

Instructions

  1. Steam or boil the broccoli florets until al dente, then set aside.
  2. In a medium skillet, sauté the onion in a bit of olive oil until translucent.
  3. Add the mushrooms and a pinch of sea salt. Cook until they begin to wilt.
  4. Add the white wine and thyme, and cook until most of the liquid evaporates.
  5. In a bowl, combine the cashew milk, flour, nutritional yeast, onion powder, garlic powder, and sea salt until smooth.
  6. Add the cashew milk mixture to the pan with the mushrooms and stir. Simmer until the sauce thickens.
  7. Stir in the cooked broccoli, combining it with the mushroom mixture.
  8. Transfer the mixture to a casserole dish and top with your choice of crispy onions, crackers, or breadcrumbs.
  9. Broil for a few minutes until the top is golden brown and crispy.
  10. Serve hot and enjoy your vegan broccoli casserole!

Notes

  • Store leftovers in an airtight container in the fridge for up to 3 days.
  • Freeze for up to one month for longer storage.
  • For a gluten-free version, swap the flour for rice flour or chickpea flour.
  • For extra protein, consider adding soy curls, tempeh, or quinoa to the casserole.
  • If you prefer, you can make the dish WFPB-compliant by sautéing with water instead of oil.

Nutrition

  • Serving Size: 1 serving
  • Calories: 131 kcal
  • Sugar: 4g
  • Sodium: 437mg
  • Fat: 2g
  • Saturated Fat: 1g
  • Unsaturated Fat: 1g
  • Trans Fat: 0g
  • Carbohydrates: 21g
  • Fiber: 7g
  • Protein: 8g
  • Cholesterol: 0mg

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