Veggie-Packed Quinoa Casserole
If you’re looking for a comforting dish that’s bursting with flavor and nutrition, you’ve come to the right place! This Veggie-Packed Quinoa Casserole is one of my all-time favorites. It’s perfect for busy weeknights when you need something hearty yet wholesome. I love how it brings together protein-rich quinoa and a vibrant mix of veggies, all topped with gooey melted cheese. Whether you’re prepping meals for the week or hosting a family gathering, this casserole is sure to please everyone at the table.
What makes this recipe extra special is its versatility. You can mix and match the ingredients based on what you have on hand or what’s in season. Plus, it’s an easy way to sneak in those veggies that sometimes get overlooked.
Why You’ll Love This Recipe
- Quick and Easy: This casserole comes together in under an hour, making it perfect for those hectic evenings.
- Family-Friendly: With its cheesy goodness and colorful veggies, even picky eaters will be asking for seconds!
- Make-Ahead Convenience: Prep it in advance and simply pop it in the oven when you’re ready to eat.
- Deliciously Nutritious: Packed with protein and vitamins, this dish is as good for you as it is tasty.
- Versatile Ingredients: Feel free to swap out veggies based on what you like or have available.

Ingredients You’ll Need
Gathering your ingredients should be a breeze! This Veggie-Packed Quinoa Casserole uses simple, wholesome items that you might already have in your pantry or fridge. Check out this list to make sure you’re ready to cook!
For the Casserole
- 1 cup quinoa, rinsed and drained
- 2 cups vegetable broth
- 1 tablespoon olive oil
- 1 small onion, diced
- 2 cloves garlic, minced
- 1 bell pepper
- 1 zucchini, diced
- 1 cup cherry tomatoes, halved
- 1 cup baby spinach, chopped
- 1 cup mushrooms, sliced
- 1 teaspoon dried oregano
- 1 teaspoon dried basil
- 1/2 teaspoon smoked paprika
- Salt and pepper to taste
For the Sauce
- 1 cup tomato sauce
- 1/2 cup Greek yogurt
- 1/2 teaspoon red pepper flakes (optional)
Toppings
- 1 cup shredded mozzarella cheese
- 1/4 cup grated Parmesan cheese
- 1/4 cup fresh parsley or basil, chopped
Variations
One of the best parts about this Veggie-Packed Quinoa Casserole is how flexible it is! Feel free to experiment with different flavors and ingredients to suit your taste.
- Add more veggies: Toss in some broccoli, carrots, or kale for even more nutrition.
- Swap the cheese: Use a dairy-free cheese option if you’re looking for a plant-based version.
- Spice it up: Add some diced jalapeños or crushed red pepper flakes for a kick of heat.
- Change the grain: Substitute quinoa with brown rice or farro if you prefer.
How to Make Veggie-Packed Quinoa Casserole
Step 1: Cook the Quinoa
In a medium saucepan, bring 2 cups of vegetable broth to a boil. Add 1 cup of rinsed quinoa, cover it up, and let it simmer for about 12-15 minutes until all the liquid is absorbed. Fluff it with a fork before setting aside—this gives the quinoa that perfect light texture!
Step 2: Sauté the Vegetables
In a large skillet, heat 1 tablespoon of olive oil over medium heat. Add your diced onion and minced garlic; cook them until fragrant—about 2 minutes should do! Then stir in your bell pepper, zucchini, mushrooms, and cherry tomatoes. Cook everything together for about 5-7 minutes until they are softened. Finally, add your baby spinach along with oregano, basil, smoked paprika, salt, and pepper. Stir until the spinach wilts nicely before removing from heat.
Step 3: Mix Up the Sauce
In a small bowl, combine the tomato sauce with Greek yogurt and red pepper flakes (if using). Mixing these together creates a creamy sauce that adds richness to our casserole!
Step 4: Assemble It All Together
Preheat your oven to 190°C (375°F). In a large mixing bowl, gently combine your cooked quinoa with sautéed vegetables and that delicious sauce we just made. Stir until everything is evenly coated—this is where all those flavors come together beautifully! Transfer this mixture into a lightly greased baking dish (9×13 inches) so it can bake up nicely.
Step 5: Top It Off
Sprinkle both mozzarella cheese and Parmesan cheese evenly over the top of your casserole. Cover it with foil to start baking—this helps keep everything moist during cooking. Bake for about 20 minutes before removing the foil and letting it bake for an additional 10 minutes until bubbly and slightly golden on top.
Step 6: Serve & Enjoy!
Once out of the oven, let your casserole rest for about 5 minutes before serving—it helps everything set up nicely. Garnish with chopped fresh parsley or basil for that finishing touch! Now dig in; I promise you’ll be back for seconds!
Pro Tips for Making Veggie-Packed Quinoa Casserole
Creating the perfect Veggie-Packed Quinoa Casserole can be a delightful experience with just a few handy tips!
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Rinse Your Quinoa Thoroughly: This step removes the natural coating called saponin, which can give your quinoa a bitter taste. A good rinse ensures your dish is as delicious as possible.
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Don’t Overcook the Vegetables: Sauté your veggies just until they are tender. This helps them maintain their vibrant colors and nutrients, ensuring your casserole is not only tasty but also visually appealing.
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Use Fresh Herbs for Extra Flavor: Adding fresh parsley or basil right before serving brightens up the dish and adds a burst of flavor that dried herbs simply can’t match.
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Experiment with Cheese Varieties: While this recipe features mozzarella and Parmesan, feel free to mix in cheeses like cheddar or feta for added depth of flavor. Each cheese brings its unique taste, transforming the casserole into something new.
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Make it Ahead of Time: This casserole stores well in the fridge and even freezes beautifully. Preparing it in advance allows the flavors to meld together, making it even more delicious when reheated!
How to Serve Veggie-Packed Quinoa Casserole
Serving your Veggie-Packed Quinoa Casserole is just as important as making it! Here are some fun ideas to elevate your presentation.
Garnishes
- Chopped Fresh Herbs: Sprinkle chopped parsley or basil on top just before serving for a fresh, aromatic finish.
- Avocado Slices: Add creamy avocado slices on the side for a rich contrast that complements the casserole’s flavors.
Side Dishes
- Mixed Green Salad: A light salad with mixed greens, cucumber, and a lemon vinaigrette balances the richness of the casserole perfectly.
- Garlic Bread: Warm garlic bread pairs wonderfully and makes it easy to scoop up every last bite of that cheesy goodness.
- Roasted Vegetables: Roasting seasonal vegetables like carrots, bell peppers, or Brussels sprouts brings out their natural sweetness and adds another layer of flavor to your meal.
- Steamed Broccoli: Bright green steamed broccoli not only complements the casserole visually but also adds extra nutrients to your plate.
Enjoy crafting this dish and serving it with love! The Veggie-Packed Quinoa Casserole is sure to be a hit at any gathering or family dinner.

Make Ahead and Storage
This Veggie-Packed Quinoa Casserole is perfect for meal prep! You can make it ahead of time, store it, and enjoy it throughout the week. Here’s how to handle leftovers and ensure they stay fresh.
Storing Leftovers
- Allow the casserole to cool completely before storing.
- Transfer it to an airtight container.
- Store in the refrigerator for up to 4 days.
Freezing
- To freeze, let the casserole cool completely.
- Cut into individual portions or leave whole.
- Wrap tightly in plastic wrap or aluminum foil, then place in a freezer-safe container.
- Freeze for up to 3 months for optimal freshness.
Reheating
- Thaw overnight in the refrigerator if frozen.
- Preheat the oven to 190°C (375°F).
- Cover with foil and bake for about 20-25 minutes or until heated through. You can also reheat individual portions in the microwave for 2-3 minutes.
FAQs
Got questions? No problem! Here are some common ones about this delicious Veggie-Packed Quinoa Casserole.
Can I customize the vegetables in this Veggie-Packed Quinoa Casserole?
Absolutely! Feel free to swap in your favorite veggies or whatever you have on hand. Broccoli, kale, or carrots would all work wonderfully.
How do I make this Veggie-Packed Quinoa Casserole vegan?
To make this recipe vegan, simply substitute the Greek yogurt with a plant-based yogurt and use dairy-free cheese alternatives.
Can I prepare this Veggie-Packed Quinoa Casserole ahead of time?
Certainly! You can assemble it a day before baking. Just cover it well and store it in the refrigerator until you’re ready to bake.
What’s the best way to serve this Veggie-Packed Quinoa Casserole?
This casserole is delightful on its own but pairs well with a fresh salad or crusty bread. It makes a fantastic main dish!
Final Thoughts
I hope you enjoy making this Veggie-Packed Quinoa Casserole as much as I do! It’s not just nourishing; it’s filled with vibrant flavors that bring joy to every bite. Whether you’re meal prepping for busy days or sharing it with loved ones at dinner, this recipe is sure to be a hit. Enjoy your cooking adventure!
Veggie-Packed Quinoa Casserole
If you’re on the hunt for a wholesome and satisfying meal, look no further than this Veggie-Packed Quinoa Casserole. Bursting with vibrant vegetables and the nutty flavor of quinoa, this dish is not only delicious but also packed with essential nutrients. It’s perfect for busy weeknights or family gatherings and can easily be customized based on your favorite seasonal produce. Topped with melted cheese, this casserole is sure to be a hit at your dinner table. Whip it up in under an hour, and enjoy leftovers throughout the week!
- Prep Time: 15 minutes
- Cook Time: 30 minutes
- Total Time: 45 minutes
- Yield: Serves about 6 people 1x
- Category: Main
- Method: Baking
- Cuisine: Vegetarian
Ingredients
- 1 cup quinoa
- 2 cups vegetable broth
- 1 tablespoon olive oil
- 1 small onion, diced
- 2 cloves garlic, minced
- 1 bell pepper
- 1 zucchini, diced
- 1 cup cherry tomatoes, halved
- 1 cup baby spinach, chopped
- 1 cup mushrooms, sliced
- 1 teaspoon dried oregano
- 1 teaspoon dried basil
- 1/2 teaspoon smoked paprika
- Salt and pepper to taste
- 1 cup tomato sauce
- 1/2 cup Greek yogurt
- 1/2 teaspoon red pepper flakes (optional)
- 1 cup shredded mozzarella cheese
- 1/4 cup grated Parmesan cheese
- 1/4 cup fresh parsley or basil, chopped
Instructions
- Rinse quinoa under cold water and bring vegetable broth to a boil in a saucepan. Add quinoa, cover, and simmer for 12-15 minutes until liquid absorbs.
- In a skillet, heat olive oil over medium heat. Sauté diced onion and minced garlic until fragrant. Add bell pepper, zucchini, mushrooms, and cherry tomatoes; cook until softened. Stir in spinach with dried herbs until wilted.
- Mix tomato sauce with Greek yogurt in a bowl.
- Combine cooked quinoa with sautéed veggies and sauce in a greased baking dish.
- Top with mozzarella and Parmesan cheese. Cover with foil and bake at 190°C (375°F) for 20 minutes; remove foil and bake an additional 10 minutes until bubbly.
Nutrition
- Serving Size: Approximately 1 cup (250g)
- Calories: 305
- Sugar: 7g
- Sodium: 480mg
- Fat: 10g
- Saturated Fat: 4g
- Unsaturated Fat: 6g
- Trans Fat: 0g
- Carbohydrates: 42g
- Fiber: 7g
- Protein: 12g
- Cholesterol: 18mg