Vegetarian Broccoli Casserole Recipes for Easy Dinners

Updated On: October 4, 2025

Broccoli casserole is a comforting and versatile dish that brings together the vibrant flavors of fresh vegetables with a creamy, cheesy texture that everyone loves. Whether you’re looking for a hearty side dish or a main course, vegetarian broccoli casseroles offer a delicious way to enjoy your greens in a warm, satisfying meal.

This recipe blog will guide you through multiple variations of vegetarian broccoli casseroles that are perfect for family dinners, potlucks, or even meal prepping for the week ahead.

From classic cheesy versions to creative twists with grains and different veggies, these recipes are designed to be both nutritious and flavorful. Loaded with fresh broccoli, wholesome ingredients, and simple pantry staples, these casseroles are sure to become a staple in your recipe collection.

Plus, there are plenty of tips and variations to suit your taste and dietary preferences. Let’s dive in and make some unforgettable vegetarian broccoli casseroles!

Why You’ll Love This Recipe

Broccoli casseroles are a fantastic way to enjoy a nutrient-packed vegetable in a creamy, comforting format. They are easy to prepare, perfect for feeding a crowd, and can be customized with your favorite ingredients.

These recipes use simple, wholesome ingredients to create a dish that’s both satisfying and healthy.

Vegetarian broccoli casseroles are also incredibly versatile. Whether you prefer a cheesy topping, a crunchy breadcrumb crust, or a gluten-free option, there’s a recipe here for you.

They’re great for meal prep, freeze well, and taste even better the next day. Plus, broccoli is rich in vitamins, fiber, and antioxidants, making this casserole a smart choice for your family’s health.

Ingredients

  • 4 cups fresh broccoli florets
  • 1 cup sliced mushrooms (optional)
  • 1 small onion, finely chopped
  • 2 cloves garlic, minced
  • 1 cup shredded cheddar cheese (or vegan cheese for dairy-free)
  • 1 cup sour cream (or plain Greek yogurt / vegan alternative)
  • 1/2 cup mayonnaise (or vegan mayo)
  • 1/2 cup cooked rice or quinoa (optional for added texture)
  • 1/2 cup breadcrumbs (use gluten-free if needed)
  • 1/4 cup grated Parmesan cheese (optional for topping)
  • 2 tbsp olive oil or butter
  • Salt and pepper to taste
  • 1 tsp dried thyme or Italian seasoning

Equipment

  • Large mixing bowl
  • Medium skillet for sautéing vegetables
  • Baking dish (8×8 inch or similar)
  • Knife and cutting board
  • Measuring cups and spoons
  • Oven
  • Spoon or spatula for mixing

Instructions

  1. Preheat your oven to 350°F (175°C). Lightly grease the baking dish with olive oil or butter.
  2. Prepare the broccoli: Steam or blanch the broccoli florets for 3-4 minutes until bright green and slightly tender. Drain and set aside.
  3. Sauté the onion, garlic, and mushrooms: Heat olive oil in a skillet over medium heat. Add the onion and cook until translucent, about 3 minutes. Add garlic and mushrooms, cooking another 3-4 minutes until softened.
  4. Mix the casserole base: In a large bowl, combine the sour cream, mayonnaise, shredded cheddar cheese, cooked rice or quinoa (if using), sautéed vegetables, and steamed broccoli. Season with salt, pepper, and dried thyme or Italian seasoning. Stir gently to combine.
  5. Transfer to baking dish: Pour the mixture into the prepared baking dish, spreading evenly.
  6. Add the topping: In a small bowl, mix breadcrumbs with grated Parmesan cheese and a teaspoon of olive oil or melted butter. Sprinkle evenly over the casserole.
  7. Bake: Place the casserole in the oven and bake for 25-30 minutes, or until the top is golden brown and the casserole is bubbling around the edges.
  8. Cool and serve: Let the casserole cool for 5 minutes before serving to allow it to set slightly.

Tips & Variations

“For a dairy-free version, substitute sour cream and cheese with vegan alternatives and use olive oil in place of butter.”

  • Make it gluten-free: Use gluten-free breadcrumbs or crushed nuts like almonds or walnuts for a crunchy topping.
  • Add extra veggies: Try adding chopped bell peppers, carrots, or zucchini for more color and nutrition.
  • Use different cheeses: Gruyère, mozzarella, or pepper jack can add unique flavors.
  • Boost with protein: Add cooked lentils, chickpeas, or tofu cubes to make it more filling.
  • Spice it up: Add a pinch of smoked paprika, cayenne pepper, or red pepper flakes for a kick.

Nutrition Facts

Nutrient Per Serving (1/6 of casserole)
Calories 280 kcal
Protein 12 g
Carbohydrates 18 g
Fiber 5 g
Fat 16 g
Saturated Fat 6 g
Sodium 400 mg
Vitamin C 70% DV
Calcium 20% DV

Serving Suggestions

Vegetarian broccoli casserole pairs beautifully with a crisp green salad or a light tomato soup for a complete meal. You can also serve it as a hearty side to complement dishes like roasted potatoes or grilled portobello mushrooms.

For a festive meal, try serving the casserole alongside freshly baked bread or garlic rolls. It also works well as a potluck contribution or a make-ahead lunch option for busy weekdays.

Delicious Vegetarian Broccoli Casserole Recipes to Try

Classic Cheesy Broccoli Casserole

This traditional recipe combines broccoli with creamy cheddar cheese sauce and a crunchy breadcrumb topping. It’s a comforting crowd-pleaser that’s perfect for holidays or any family dinner.

Broccoli and Quinoa Casserole

Add cooked quinoa to your broccoli casserole for a protein-packed, gluten-free meal. Mix in a blend of cheeses and fresh herbs for extra flavor and texture.

Vegan Broccoli Casserole with Cashew Cream

For a plant-based take, swap dairy with a rich cashew cream sauce and vegan cheese. This version is creamy, satisfying, and free from common allergens.

Broccoli and Mushroom Rice Casserole

Combine sautéed mushrooms and fluffy rice with broccoli in a creamy sauce for a filling vegetarian casserole that’s great for leftovers.

Spicy Broccoli and Black Bean Casserole

Add black beans, jalapeños, and a smoky chipotle sauce for a southwestern twist on broccoli casserole. Top with avocado slices and fresh cilantro before serving.

For more creative vegetarian recipes, check out these favorites:

Conclusion

Vegetarian broccoli casseroles are a delightful way to enjoy a nutritious vegetable in an indulgent yet wholesome dish. Whether you prefer a classic cheesy casserole or a more inventive vegan version, these recipes offer something for every palate and dietary need.

They’re easy to customize, make-ahead friendly, and perfect for sharing with family and friends.

By incorporating fresh broccoli, simple seasonings, and your favorite add-ins, you create a warm, satisfying dish that’s packed with flavor and nutrition. Don’t hesitate to experiment with different cheeses, grains, and seasonings to make these casseroles your own.

For more inspiration, explore other delicious vegetarian recipes on our site – your taste buds will thank you!

📖 Recipe Card: Vegetarian Broccoli Casserole

Description: A creamy and cheesy broccoli casserole perfect for a comforting vegetarian meal. Easy to prepare and packed with flavor.

Prep Time: PT15M
Cook Time: PT35M
Total Time: PT50M

Servings: 6 servings

Ingredients

  • 4 cups fresh broccoli florets
  • 1 cup shredded cheddar cheese
  • 1 cup sour cream
  • 1/2 cup mayonnaise
  • 1/2 cup chopped onion
  • 1/2 cup crushed Ritz crackers
  • 2 cloves garlic, minced
  • 1/4 cup grated Parmesan cheese
  • 1 tablespoon olive oil
  • 1/2 teaspoon salt
  • 1/4 teaspoon black pepper
  • 1/4 teaspoon paprika

Instructions

  1. Preheat oven to 350°F (175°C).
  2. Steam broccoli until tender, about 5 minutes.
  3. In a large bowl, mix sour cream, mayonnaise, cheddar cheese, onion, garlic, salt, and pepper.
  4. Add steamed broccoli to the mixture and stir to combine.
  5. Transfer mixture to a greased 9×13 inch baking dish.
  6. Sprinkle crushed crackers and Parmesan cheese evenly on top.
  7. Drizzle olive oil over the cracker topping.
  8. Bake uncovered for 30-35 minutes until bubbly and golden on top.
  9. Remove from oven and let cool for 5 minutes before serving.

Nutrition: Calories: 280 kcal | Protein: 12 g | Fat: 20 g | Carbs: 12 g

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Marta K

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