Description
This healthy and delicious roasted vegetable dish features a colorful medley of bell peppers, zucchini, sweet potatoes, red onions, and broccoli, all tossed in a flavorful mix of olive oil, Dijon mustard, and Italian seasoning. Roasted to golden perfection and optionally topped with grated Parmesan, this versatile dish is perfect as a side or a light main.
Ingredients
Scale
Vegetables
- 2 cups Bell Peppers (any color)
- 2 cups Zucchini (or summer squash)
- 1 large Sweet Potato (or regular potatoes as a substitute)
- 1 large Red Onion (yellow onion can be used if red is unavailable)
- 2 cups Broccoli (can replace with cauliflower or Brussels sprouts)
Seasonings and Extras
- 3 tablespoons Extra Virgin Olive Oil (or avocado oil for high smoke point)
- 1 tablespoon Dijon Mustard (omit or use another mustard if necessary)
- 2 teaspoons Italian Seasoning (or a mix of oregano, basil, and thyme)
- 1 teaspoon Kosher Salt (or sea salt as an alternative)
- 1 teaspoon Garlic Powder (fresh minced garlic can be used)
- 1 teaspoon Ground Black Pepper (adjust to taste)
- 1/2 cup Grated Parmesan Cheese (omit for a dairy-free version)
Instructions
- Preheat Oven: Set your oven to 400°F (or 375°F if using convection) to prepare for roasting the vegetables evenly.
- Prepare Baking Sheets: Generously coat two baking sheets with non-stick spray to prevent vegetables from sticking during roasting.
- Combine Vegetables and Seasonings: In a large bowl, toss the chopped bell peppers, zucchini, sweet potato, red onion, and broccoli with olive oil and Dijon mustard. Sprinkle Italian seasoning, kosher salt, garlic powder, and ground black pepper over the mixture, then toss thoroughly to coat all pieces evenly.
- Arrange on Baking Sheets: Spread the seasoned vegetables out evenly in a single layer on the prepared baking sheets. Avoid overcrowding to ensure even roasting.
- Roast the Vegetables: Place the baking sheets in the preheated oven and roast for 25 to 35 minutes. Toss the vegetables halfway through cooking to promote uniform browning and tenderness.
- Add Parmesan Garnish: After removing the vegetables from the oven, sprinkle grated Parmesan cheese over the top while still hot, allowing it to melt slightly before serving.
Notes
- Feel free to substitute vegetables such as cauliflower or Brussels sprouts for the broccoli depending on availability and preference.
- Dijon mustard adds a subtle tang and helps to bind the seasoning; if unavailable, you can omit it or use another mustard.
- For a dairy-free option, simply omit the Parmesan cheese garnish.
- Using avocado oil instead of olive oil can provide a higher smoke point for roasting at high temperatures.
- Ensure vegetables are in a single layer on the baking sheets to promote even roasting and caramelization.
