Roasted Zucchini and Summer Squash is a delightful dish that captures the essence of late summer. This simple yet flavorful side highlights the natural sweetness of zucchini and yellow squash, enhanced with a tangy marinade of olive oil and balsamic vinegar. Whether you’re hosting a backyard barbecue or enjoying a family dinner, this recipe suits any occasion. Its vibrant colors and fresh flavors make it a standout addition to your table.
Why You’ll Love This Recipe
- Quick and Easy: With just 15 minutes of prep time, you can have a delicious side ready in no time.
- Flavorful Marinade: The combination of olive oil and balsamic vinegar elevates the taste of the vegetables.
- Versatile Dish: Perfect as a side for grilled meats, pasta, or even on its own as a light meal.
- Healthy Option: Packed with vitamins and nutrients, this dish is both tasty and good for you.
- Seasonal Ingredients: Using fresh summer produce makes this recipe a great way to enjoy what’s in season.
Tools and Preparation
Having the right tools makes cooking easier and more enjoyable. For this recipe, you’ll need some essential equipment to ensure everything runs smoothly.
Essential Tools and Equipment
- Baking sheet or roasting pan
- Mixing bowl
- Small bowl for marinade
- Knife
- Cutting board
Importance of Each Tool
- Baking sheet or roasting pan: Provides ample space for roasting vegetables evenly without overcrowding.
- Mixing bowl: Ideal for combining the marinade and tossing the vegetables together.
- Knife: A sharp knife ensures easy slicing of vegetables, making prep quick and efficient.
Ingredients
This is one of my favorite side dishes to make in the late summer — simple roasted zucchini and summer squash, with a marinade of olive oil and balsamic vinegar to heighten the flavor.
For the Marinade
- 2 tablespoons extra virgin olive oil
- 3 tablespoons balsamic vinegar (or other mild vinegar)
- 2 teaspoons salt-free seasoning blend (like Mrs. Dash)
- 1/2 teaspoon dried oregano
For the Vegetables
- 1 medium red onion, diced
- 2 medium zucchinis, halved or quartered lengthwise and sliced
- 1 medium yellow summer squash, halved or quartered lengthwise and sliced
- 1 medium red bell pepper, diced
- Salt and freshly ground pepper
- 1/4 cup chopped fresh parsley or cilantro
How to Make Roasted Zucchini and Summer Squash
Step 1: Preheat the Oven
Preheat your oven to 425º F. This high temperature will help achieve that perfect roast on your vegetables.
Step 2: Prepare the Marinade
In a small bowl, combine the ingredients for the marinade:
1. Add extra virgin olive oil.
2. Pour in balsamic vinegar.
3. Mix in salt-free seasoning blend and dried oregano.
4. Stir until well combined.
Step 3: Roast the Onions
Combine the diced onion with 1 tablespoon of the marinade in a mixing bowl.
– Transfer this mixture to a parchment-lined baking sheet or roasting pan.
– Place in the oven for 10 minutes.
Step 4: Combine Remaining Vegetables
In the same mixing bowl used for onions:
– Combine sliced zucchini, yellow squash, and diced red bell pepper.
– Pour remaining marinade over these vegetables.
– Toss together until well-coated.
Step 5: Roast All Vegetables Together
Transfer all vegetables along with their marinade back to the roasting pan:
– Stir together with roasted onions.
– Bake for an additional 15 minutes, stirring after 10 minutes until tender and lightly browned.
Step 6: Serve
Once roasted, transfer your vegetable mixture to a serving bowl:
– Season with salt and freshly ground pepper to taste.
– Stir in chopped parsley or cilantro before serving warm or at room temperature.
Enjoy your Roasted Zucchini and Summer Squash as a colorful addition to any meal!
How to Serve Roasted Zucchini and Summer Squash
Roasted zucchini and summer squash make a delightful side dish that pairs well with a variety of meals. Here are some serving suggestions to enhance your dining experience.
Pair with Grilled Proteins
- Chicken: The savory taste of grilled chicken complements the sweetness of roasted vegetables.
- Fish: Lightly seasoned fish, such as salmon or tilapia, balances the flavors beautifully.
- Tofu: For a plant-based option, try marinated and grilled tofu for added protein.
Add to Salads
- Mixed Greens: Toss roasted zucchini and summer squash into a salad for extra flavor and texture.
- Pasta Salad: Incorporate them into a cold pasta salad for a refreshing side dish.
- Quinoa Salad: Combine with quinoa, herbs, and feta cheese for a nutritious meal.
Use as a Sandwich Filling
- Veggie Sandwich: Layer roasted vegetables in a sandwich with hummus for a hearty vegetarian option.
- Wraps: Include them in wraps along with greens and your favorite dressing.
Serve as a Tapas Dish
- Antipasto Platter: Place alongside olives, cheeses, and other roasted vegetables for a shareable appetizer.
- Bruschetta Topping: Top toasted bread slices with the roasted mixture for an easy bite-sized treat.

How to Perfect Roasted Zucchini and Summer Squash
Achieving the best flavor from your roasted zucchini and summer squash is easy with these simple tips.
- Use Fresh Ingredients: Fresh zucchini and summer squash yield the best flavor and texture.
- Don’t Overcrowd the Pan: Ensure vegetables have space between them to roast evenly rather than steam.
- Adjust Seasonings: Feel free to customize the seasoning blend to suit your taste preferences; add garlic or red pepper flakes for extra kick.
- Experiment with Marinades: Try different vinegars or oils in the marinade to create unique flavor profiles.
- Check for Doneness: Vegetables should be tender but not mushy; check them after 15 minutes of roasting.
- Garnish Before Serving: Fresh herbs like parsley or cilantro enhance both presentation and taste just before serving.
Best Side Dishes for Roasted Zucchini and Summer Squash
Roasted zucchini and summer squash pair wonderfully with various side dishes. Here are some great options to consider.
- Garlic Mashed Potatoes: Creamy mashed potatoes infused with garlic offer comfort alongside roasted veggies.
- Couscous Salad: A light couscous salad mixed with cherry tomatoes, cucumbers, and herbs adds freshness to your plate.
- Grilled Corn on the Cob: Sweet corn complements the earthiness of zucchini, making it an ideal summer pairing.
- Ratatouille: A vegetable medley that highlights seasonal produce mirrors the flavors of roasted zucchini.
- Herbed Rice Pilaf: Fluffy rice seasoned with herbs brings a fragrant element that enhances every bite of squash.
- Caprese Salad: Fresh mozzarella, tomatoes, and basil drizzled with balsamic glaze provide a refreshing contrast.
Common Mistakes to Avoid
When making Roasted Zucchini and Summer Squash, it’s essential to avoid common pitfalls that can affect flavor and texture.
- Overcrowding the Pan: When too many vegetables are packed together, they steam instead of roast. Make sure to spread the zucchini and summer squash in a single layer for even cooking.
- Not Preheating the Oven: Roasting at the right temperature is crucial. Always preheat your oven to ensure the vegetables cook properly and develop a nice caramelization.
- Skipping the Marinade: The marinade adds depth of flavor. Don’t skip it! Combine olive oil and vinegar with seasonings to enhance the taste of your dish.
- Ignoring Seasoning: Vegetables can be bland without proper seasoning. Don’t forget to season with salt and pepper before serving for best results.
- Cutting Vegetables Unevenly: Consistent sizes ensure even cooking. Aim for uniform pieces when cutting zucchini and summer squash to achieve a balanced texture.

Storage & Reheating Instructions
Refrigerator Storage
- Store Roasted Zucchini and Summer Squash in an airtight container.
- It will last for up to 3 days in the refrigerator.
Freezing Roasted Zucchini and Summer Squash
- Place cooled vegetables in freezer bags or containers.
- They can be frozen for up to 3 months.
Reheating Roasted Zucchini and Summer Squash
- Oven: Preheat the oven to 350º F. Spread on a baking sheet and heat for about 10-15 minutes until warmed through.
- Microwave: Place in a microwave-safe dish, cover, and heat for 1-2 minutes, checking frequently.
- Stovetop: Heat in a skillet over medium heat for about 5 minutes, stirring occasionally until hot.
Frequently Asked Questions
What is the best way to cut zucchini and summer squash?
Cutting them into uniform pieces ensures they roast evenly. Halving or quartering lengthwise before slicing is effective.
Can I add other vegetables to roasted zucchini and summer squash?
Absolutely! Bell peppers, carrots, or eggplants complement this dish well. Feel free to customize based on your preferences.
How can I make Roasted Zucchini and Summer Squash spicy?
Add red pepper flakes or cayenne pepper to the marinade for a kick. Adjust according to your heat tolerance!
What dishes pair well with Roasted Zucchini and Summer Squash?
This side dish pairs beautifully with grilled meats, pasta, or grain-based salads, enhancing any meal’s variety.
Final Thoughts
Roasted Zucchini and Summer Squash is a delightful side dish that highlights seasonal produce while providing versatility in flavors. You can easily customize it by adding different vegetables or spices based on what you have on hand. Give this recipe a try; it’s perfect for summer gatherings or as a simple weeknight side!

Roasted Zucchini and Summer Squash
- Total Time: 40 minutes
- Yield: Serves approximately 4 people 1x
Description
Roasted Zucchini and Summer Squash is a vibrant and flavorful side dish that perfectly captures the essence of late summer produce. This easy recipe highlights the natural sweetness of zucchini and yellow squash, enhanced by a tangy marinade of extra virgin olive oil and balsamic vinegar. With just 15 minutes of prep time, you can serve this delightful medley at any gathering or family dinner. The colorful vegetables not only add visual appeal to your table but are also packed with vitamins and nutrients, making them a healthy choice for any meal.
Ingredients
- 2 tablespoons extra virgin olive oil
- 3 tablespoons balsamic vinegar
- 1 medium red onion, diced
- 2 medium zucchinis, sliced
- 1 medium yellow summer squash, sliced
- 1 medium red bell pepper, diced
- Salt and freshly ground pepper to taste
- Fresh parsley or cilantro for garnish
Instructions
- Preheat the oven to 425°F (220°C).
- In a small bowl, mix olive oil, balsamic vinegar, salt-free seasoning blend, and oregano.
- Toss diced onions in one tablespoon of the marinade on a baking sheet; roast for 10 minutes.
- In a mixing bowl, combine zucchini, yellow squash, red bell pepper with remaining marinade; toss well.
- Add these vegetables to the roasted onions; stir and bake for an additional 15 minutes until tender.
- Prep Time: 15 minutes
- Cook Time: 25 minutes
- Category: Side Dish
- Method: Baking
- Cuisine: Vegetarian
Nutrition
- Serving Size: About 1 cup (150g)
- Calories: 120
- Sugar: 4g
- Sodium: 290mg
- Fat: 7g
- Saturated Fat: 1g
- Unsaturated Fat: 6g
- Trans Fat: 0g
- Carbohydrates: 13g
- Fiber: 3g
- Protein: 2g
- Cholesterol: 0mg