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marinated mushrooms in a glass jar.

Marinated Mushrooms

Published by Kate
These Italian marinated mushrooms are an easy appetizer or side dish. They're packed with flavor and the perfect balance of savory and tangy.
5 from 5 votes
Prep Time 15 minutes
Cook Time 0 minutes
Marinating time 8 hours
Total Time 8 hours 15 minutes
Course Appetizer
Cuisine American
Servings 10
Calories 139 kcal


  • 2 (8 oz) packages baby bella mushrooms
  • 2 small yellow onions
  • 2 (0.7 oz) packets Good Seasons Italian dressing mix
  • cup olive oil
  • cup white vinegar
  • ¼ cup water
  • ½ teaspoon salt


  • Clean dirt off mushrooms with a damp rag or paper towel. Cut large mushrooms into quarters and smaller mushrooms in half.
  • Peel onions and slice into thin rings. Place the mushrooms and onions in a dish with a lid (such as a plastic or glass dish that you use for leftovers).
  • In a medium bowl, whisk together the Italian dressing mix, olive oil, vinegar, water, and salt.
  • Pour over the mushrooms and onions, cover the dish with a lid, and shake gently to coat. Place in the refrigerator, and allow to marinate for at least 8 hours.


If serving as an appetizer or on a cheese board, serve with toothpicks.
Leftover marinade can be used as salad dressing or for pasta salad. 
The mushrooms will keep in the refrigerator for up to one week.


Calories: 139kcalCarbohydrates: 2gProtein: 1gFat: 14gSaturated Fat: 2gPolyunsaturated Fat: 2gMonounsaturated Fat: 11gSodium: 139mgPotassium: 50mgFiber: 1gSugar: 1gVitamin A: 1IUVitamin C: 2mgCalcium: 7mgIron: 1mg
Keyword marinated mushrooms
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