How many servings does this recipe make?

This recipe makes 4 servings. You can adjust the portion size directly on this page.

What ingredients do I need for Roasted Zucchini, Mushrooms, And Onions?

You need 6 ingredients. The key ingredients include: 3 medium zucchini, halved lengthwise and sliced 1/4-inch thick (about 1 pound), 1 1/2 cups sliced mushrooms, 1 yellow onion, sliced and separated into rings, 2 -3 teaspoons extra virgin olive oil, and more.

Is Roasted Zucchini, Mushrooms, And Onions suitable as vegetarian?

Yes, Roasted Zucchini, Mushrooms, And Onions falls under the Vegetarian category and is a great choice for this type of meal.

How do I store leftover Roasted Zucchini, Mushrooms, And Onions?

Store leftovers in an airtight container in the refrigerator for up to 3–4 days. Reheat gently before serving.

Roasted Zucchini, Mushrooms, And Onions Recipe

Name: Roasted Zucchini, Mushrooms, And Onions
Prep time: 15 min
Cook time: 30 min
Total time: 45 min
Yield: 4 servings
Ingredients: 3 medium zucchini, halved lengthwise and sliced 1/4-inch thick (about 1 pound); 1 1/2 cups sliced mushrooms; 1 yellow onion, sliced and separated into rings; 2 -3 teaspoons extra virgin olive oil; 1/4 teaspoon salt; 1/2 teaspoon dried Italian seasoning

Try this homemade Roasted Zucchini, Mushrooms, And Onions recipe the whole family will love. Made with zucchini, mushrooms, yellow onion and extra virgi…

This Roasted Zucchini, Mushrooms, And Onions relies on simple, everyday ingredients such as sliced mushrooms, extra virgin olive oil, salt and dried italian seasoning. It comes together quickly and makes 4 servings, at about 482 kcal each. The step-by-step instructions below are written to be easy to follow, even on a busy day.

It's versatile enough for an easy weeknight dinner yet satisfying enough for guests at the weekend. Serve it with your favorite sides, and keep any leftovers for a quick meal the next day.

Updated Jun 30, 2026

Serves 4 Vegetarian

Servings: persons

3 medium zucchini, halved lengthwise and sliced 1/4-inch thick (about 1 pound)
1 1/2 cups sliced mushrooms
1 yellow onion, sliced and separated into rings
2 -3 teaspoons extra virgin olive oil
1/4 teaspoon salt
1/2 teaspoon dried Italian seasoning

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Quick Info

Servings
4 servings
Calories
482 kcal
Category
Vegetarian

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