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 Marinated Tomatoes, Onions & Mushrooms?

You need 11 ingredients. The key ingredients include: 5 large tomatoes, cut into wedges, 1 medium red onion, sliced thin, 1 ½ cups fresh mushrooms, sliced thin, 1 ½ tablespoons dried parsley, crushed, and more.

Is Marinated Tomatoes, Onions & Mushrooms suitable as general?

Yes, Marinated Tomatoes, Onions & Mushrooms falls under the General category and is a great choice for this type of meal.

How do I store leftover Marinated Tomatoes, Onions & Mushrooms?

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

Marinated Tomatoes, Onions & Mushrooms Recipe

Name: Marinated Tomatoes, Onions & Mushrooms
Prep time: 15 min
Cook time: 30 min
Total time: 45 min
Yield: 4 servings
Ingredients: 5 large tomatoes, cut into wedges; 1 medium red onion, sliced thin; 1 ½ cups fresh mushrooms, sliced thin; 1 ½ tablespoons dried parsley, crushed; 1 tablespoon sugar; 1 ½ teaspoons garlic salt; 1 ½ teaspoons Lawry's Seasoned Salt; ½ teaspoon black pepper; ½ teaspoon thyme; ¾ cup vegetable oil; ½ cup red wine vinegar

Try this homemade Marinated Tomatoes, Onions & Mushrooms recipe the whole family will love. Made with tomatoes, red onion, fresh mushrooms and parsley. …

This Marinated Tomatoes, Onions & Mushrooms relies on simple, everyday ingredients such as fresh mushrooms, sliced thin, dried parsley, crushed, sugar and garlic salt. It comes together quickly and makes 4 servings, at about 474 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 General

Tips for the best results

Read through all the steps once before you start and measure out your ingredients first — it makes everything go more smoothly.
Taste as you go and adjust the seasoning before serving.
Avoid overcrowding the pan — cook in batches if needed for the best texture.
Let the dish rest for a few minutes before serving so the flavors settle.
Store leftovers in an airtight container in the fridge and enjoy within a few days.

Variations & substitutions

Brown sugar instead of white sugar adds a deeper, more caramel-like flavor.

No specific allergen information. Please check the ingredient list for possible allergens.

My Personal Notes

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Marinated Tomatoes, Onions & Mushrooms

Tips for the best results

Variations & substitutions

My Personal Notes

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