Veggie-Packed Quinoa Casserole
If you’re looking for a dish that’s both hearty and healthy, this Veggie-Packed Quinoa Casserole is just what you need! I can’t tell you how many times this recipe has saved me on busy weeknights when I want something quick yet satisfying. It’s such a joy to gather all these colorful veggies and protein-rich quinoa into one dish, making it not only delicious but also nutritious. Plus, it’s perfect for family gatherings and potlucks—everyone loves it!
This casserole is like a hug in a dish, full of gooey cheese and vibrant flavors. It’s an easy way to sneak in those veggies without anyone even noticing! You’ll find that it works wonderfully for meal prep too; just make a batch on Sunday, and you have lunches sorted for the week.
Why You’ll Love This Recipe
- Quick and Easy: This Veggie-Packed Quinoa Casserole comes together in about 50 minutes from start to finish. Perfect for those busy days!
- Family-Friendly: With its cheesy goodness and colorful veggies, it’s sure to please even the pickiest eaters at your table.
- Meal Prep Friendly: Make a large batch ahead of time, portion it out, and enjoy warming it up throughout the week.
- Endless Customization: Feel free to mix in your favorite vegetables or grains. The possibilities are endless!
- Nutritious and Filling: Packed with protein from quinoa and loaded with vitamins from fresh veggies, this casserole is a wholesome choice for any meal.

Ingredients You’ll Need
You won’t believe how simple and wholesome the ingredients are for this Veggie-Packed Quinoa Casserole! Most of them are staples you might already have in your pantry or fridge.
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
This recipe is incredibly flexible! If you’re feeling adventurous or just want to use up what you have on hand, here are some fun variations:
- Swap the grains: Use brown rice or farro instead of quinoa for a different texture.
- Add more greens: Toss in kale or Swiss chard along with the spinach for extra nutrients.
- Change the cheese: Use cheddar or pepper jack for a twist on flavor.
- Make it spicy: Add some diced jalapeños or increase the red pepper flakes if you love heat!
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. Reducing heat helps prevent overcooking—covering keeps moisture in. Let it simmer for about 12-15 minutes until all liquid is absorbed. Fluff with a fork when done; this gives your quinoa a lovely texture!
Step 2: Sauté the Vegetables
In a large skillet over medium heat, heat 1 tablespoon of olive oil. Add diced onion and minced garlic; cooking them until fragrant (about 2 minutes) creates a wonderful base flavor. Stir in bell pepper, zucchini, mushrooms, and cherry tomatoes. Cook them until softened (about 5-7 minutes), then stir in baby spinach along with oregano, basil, smoked paprika, salt, and pepper until everything wilts beautifully.
Step 3: Prepare the Sauce
In a small bowl, combine tomato sauce with Greek yogurt and red pepper flakes if you’re using them. Mixing yogurt into your sauce not only adds creaminess but also gives an extra boost of protein!
Step 4: Combine Everything
Preheat your oven to 190°C (375°F). In a large mixing bowl, combine cooked quinoa with sautéed vegetables and that luscious sauce we just made. Stir gently until everything is well coated before transferring it all into a lightly greased baking dish (9×13 inches).
Step 5: Add Cheese & Bake
Top your casserole generously with mozzarella cheese and sprinkle Parmesan evenly over everything. Cover with foil—this locks in moisture—and bake for 20 minutes. After removing foil for the last 10 minutes allows that cheese to bubble up nicely!
Step 6: Serve & Enjoy!
Let your casserole rest for about 5 minutes before serving—it helps everything set beautifully. Garnish with fresh parsley or basil right before digging in! Trust me; every bite will be worth it!
Pro Tips for Making Veggie-Packed Quinoa Casserole
Making this casserole is a breeze, but a few tips can take it to the next level!
- Rinse the quinoa: This step removes any bitterness from the quinoa’s natural coating, ensuring a nutty flavor that complements your dish perfectly.
- Mix and match vegetables: Feel free to swap in your favorite veggies or whatever you have on hand. Sweet potatoes, kale, or broccoli can add unique flavors and nutrition.
- Don’t skip the resting time: Allowing the casserole to rest for 5 minutes after baking helps it set up nicely, making it easier to serve and enhancing the overall flavors.
- Experiment with herbs and spices: Get creative! Adding fresh herbs like thyme or dill can bring a new twist to the flavor profile, while different spices can add depth.
- Make it ahead: Prepare your casserole in advance and store it in the fridge for up to 24 hours before baking. This makes weeknight dinners even easier!
How to Serve Veggie-Packed Quinoa Casserole
This Veggie-Packed Quinoa Casserole not only tastes great but also looks vibrant on your dining table. Here are some delightful ways to present and enjoy this dish.
Garnishes
- Chopped fresh herbs: Sprinkling parsley or basil adds a burst of freshness and color that brightens the dish.
- Avocado slices: Creamy avocado complements the casserole beautifully, adding a rich texture that balances out the flavors.
- Lemon zest: A sprinkle of lemon zest just before serving brings a zesty kick that enhances all those delicious veggies.
Side Dishes
- Mixed green salad: A crisp salad with mixed greens, cherry tomatoes, cucumber, and a light vinaigrette offers a refreshing contrast to the warm casserole.
- Roasted vegetables: Pairing this dish with roasted carrots, Brussels sprouts, or asparagus adds extra flavor and nutrition while keeping things simple.
- Garlic bread: A slice of garlic bread is perfect for scooping up any leftovers on your plate – plus, who doesn’t love buttery garlic goodness?
- Steamed broccoli: This classic side is quick to prepare and provides an additional veggie boost while complementing the flavors of your casserole.
Enjoy serving this flavorful Veggie-Packed Quinoa Casserole at your next gathering or simply as a comforting family dinner!

Make Ahead and Storage
This Veggie-Packed Quinoa Casserole is fantastic for meal prep, allowing you to enjoy delicious, healthy meals throughout the week with minimal effort. You can easily store leftovers or even prepare it in advance for busy nights!
Storing Leftovers
- After enjoying your casserole, let it cool completely.
- Transfer leftovers to an airtight container.
- Store in the refrigerator for up to 4 days.
Freezing
- Cool the casserole completely before freezing.
- Cut into individual portions and wrap them tightly in plastic wrap or aluminum foil.
- Place wrapped portions in a freezer-safe container or bag; they can be frozen for up to 3 months.
Reheating
- For refrigerated leftovers, preheat your oven to 180°C (350°F).
- Place the casserole in an oven-safe dish and cover with foil. Bake for about 15-20 minutes until heated through.
- If reheating from frozen, bake covered for about 30-40 minutes or until warmed thoroughly.
FAQs
Here are some common questions that might come up while making this delicious casserole!
Can I make this Veggie-Packed Quinoa Casserole ahead of time?
Absolutely! You can prepare the entire casserole ahead of time, just refrigerate it before baking. When you’re ready to eat, simply bake as instructed.
What vegetables work well in the Veggie-Packed Quinoa Casserole?
You can use any seasonal vegetables you have on hand! Try adding broccoli, carrots, or kale for extra nutrition and flavor.
Is there a way to customize the cheese in the Veggie-Packed Quinoa Casserole?
Certainly! Feel free to swap mozzarella and Parmesan with your favorite plant-based cheese alternatives if you’re looking for a non-dairy option.
How do I know when the Veggie-Packed Quinoa Casserole is done baking?
The casserole is done when the cheese is bubbly and slightly golden on top. A toothpick inserted into the center should come out hot.
Final Thoughts
I hope you enjoy making this Veggie-Packed Quinoa Casserole as much as I do! It’s not just a meal; it’s a comforting dish that brings together vibrant flavors and wholesome ingredients. Whether you’re cooking for yourself or sharing with loved ones, I’m sure it will become a favorite. Happy cooking!
Veggie-Packed Quinoa Casserole
If you’re in search of a dish that’s both hearty and healthy, the Veggie-Packed Quinoa Casserole is your answer! This delightful casserole combines protein-rich quinoa with an array of colorful vegetables, making it not only visually appealing but also nutritious. It’s perfect for busy weeknights and family gatherings alike, ensuring that everyone at the table enjoys a delicious meal. With gooey cheese and vibrant flavors, this easy-to-make casserole is ideal for meal prep; whip up a batch on Sunday and savor it all week long!
- Prep Time: 15 minutes
- Cook Time: 35 minutes
- Total Time: 50 minutes
- Yield: Serves approximately six people 1x
- Category: Dinner
- Method: Baking
- Cuisine: Mediterranean
Ingredients
- 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, diced
- 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 cup shredded mozzarella cheese
- 1/4 cup grated Parmesan cheese
- 1/4 cup fresh parsley or basil, chopped
Instructions
- In a medium saucepan, bring 2 cups of vegetable broth to a boil. Add 1 cup of rinsed quinoa. Cover and simmer for about 12-15 minutes until all liquid is absorbed. Fluff with a fork when done.
- In a large skillet over medium heat, heat 1 tablespoon of olive oil. Add diced onion and minced garlic; cook until fragrant (about 2 minutes). Stir in bell pepper, zucchini, mushrooms, and cherry tomatoes; cook until softened (about 5-7 minutes). Stir in baby spinach along with oregano, basil, smoked paprika, salt, and pepper until everything wilts.
- In a small bowl, combine tomato sauce with Greek yogurt and red pepper flakes if using.
- Preheat your oven to 190°C (375°F). In a large mixing bowl, combine cooked quinoa with sautéed vegetables and the sauce. Stir gently before transferring to a lightly greased 9×13 inches baking dish.
- Top with mozzarella and Parmesan cheese. Cover with foil and bake for 20 minutes. Remove foil for the last 10 minutes.
- Let rest for 5 minutes before serving and garnish with fresh parsley or basil.
Nutrition
- Serving Size: 1 serving
- Calories: 350
- Sugar: 5g
- Sodium: 450mg
- Fat: 12g
- Saturated Fat: 6g
- Unsaturated Fat: 4g
- Trans Fat: 0g
- Carbohydrates: 48g
- Fiber: 8g
- Protein: 14g
- Cholesterol: 25mg