EasyHealth Living

  • Home
  • Recipe Index
  • Diabetes Guide
  • Ebook
  • About
menu icon
go to homepage
  • Home
  • Recipe Index
  • Diabetes Guide
  • Ebook
  • About
search icon
Homepage link
  • Home
  • Recipe Index
  • Diabetes Guide
  • Ebook
  • About
×
Home » Diabetes Diet

Oven Portobello Mushrooms and Onions

Published: Jun 27, 2020 • Modified: Jun 27, 2020 by Charlotte• This post may contain affiliate links •3 Comments

826 shares
Jump to Recipe -
roasted mushrooms and onions on plate

Oven roasted portobello mushrooms and onions are the perfect addition to tacos, pizza, wraps and salads. Balsamic vinegar adds a flavor boost you will love! So easy- the veggies roast in the oven while you prep your meal.

cooked mushrooms and onions on white plate

This recipe originally published February 2014, now updated with new photos, step by step instructions and pro tips.

These oven roasted onions and mushrooms are so versatile! I like to roast a batch when I have time and then store them in the refrigerator to use throughout the week. Mushrooms and onions add tons of flavor to entrees, vegetables and snacks. These are also delicious added to tacos and as a pizza topping.

Jump to:
  • Why this recipe works
  • Ingredients
  • Instructions
  • Expert tips
  • Recipe
  • Comments
roasted sliced onions and mushrooms

Roasting the mushrooms and onions with a splash of balsamic vinegar kicks the flavor up and makes these veggies perfect add ons to just about any recipe. Check out my Low Carb Steak Taco Bowl, Low Carb Mediterranean Chicken and Low Carb Fajita Lettuce Wrap for more ways to use roasted veggies.

Why this recipe works

  • We are using a tasty combo of onions and mushrooms to add umami to almost any recipe we pair this with.
  • A lower oven temp and longer roasting time just adds to the flavor.
  • A great make ahead recipe.
roasted mushrooms and onions

Ingredients

  • Onions- I used yellow onions but others can be used such as Vidalia, white or sweet onions.
  • Mushrooms- You may use portobello or white varieties.
  • Olive oil
  • Balsamic Vinegar- choose your favorite brand
  • Seasonings

Instructions

  • Step 1: Add sliced onions and portobello mushrooms to a medium sized bowl.
  • Step 2: Add remaining ingredients and stir to combine.
  • Step 3: Roast in oven until tender and browned.
chopped onions and mushrooms in bowl
Step 1
sliced onions and mushrooms with olive oil
Step 2
roasted sliced onions and mushrooms
Step 3

Expert tips

  • Buy pre-sliced onions and baby bellas for convenience if desired.
  • Use a foil-lined pan for easier clean up.
  • Store in refrigerator up to 3 days.
roasted mushrooms and onions on white plate

Looking for more low carb recipe ideas? Check out my Low Carb Cheesesteak Stuffed Mushrooms, Low Carb Tomato Mushroom Pizza and Spinach Artichoke Dip!

Did you make this recipe? Be sure to leave your star rating below!

Recipe

roasted sliced onions and mushrooms

Oven Portobello Mushrooms and Onions

Oven roasted portobello mushrooms and onions are the perfect addition to tacos, pizza, wraps and salads. Balsamic vinegar adds a flavor boost you will love! So easy- the veggies roast in the oven while you prep your meal.
4.46 from 35 votes
Print Pin Rate
Course: Side Dish
Cuisine: American
Diet: Diabetic, Low Calorie, Low Lactose, Vegetarian
Prep Time: 10 minutes minutes
Cook Time: 45 minutes minutes
Total Time: 55 minutes minutes
Servings: 4
Calories: 104kcal
Author: Easyhealth Living

Ingredients

  • 2 medium Onions sliced
  • 8 oz Mushrooms, portobello , sliced
  • 2 Tablespoons Olive Oil
  • 2 Tablespoons Balsamic Vinegar
  • ½ Teaspoon Thyme
  • ½ Teaspoon Black Pepper
  • ¼ Teaspoon Sea Salt
Prevent your screen from going dark

Instructions

  • Preheat oven to 375 degrees.
  • Line a large baking sheet with foil and coat with nonstick spray. Set aside.
  • In a large bowl, combine all ingredients, mixing well.
  • Spread evenly onto baking sheet.
  • Roast in oven for 45 minutes or until roasted and tender, stirring halfway through baking time.
  • Use immediately or store in refrigerator for use later.

Notes

Expert Tips
  • Buy pre-sliced onions and mushrooms for convenience if desired.
  • Use a foil-lined pan for easier clean up.
  • Store in refrigerator up to 3 days.
 
Nutrition Facts
Oven Portobello Mushrooms and Onions
Amount per Serving
Calories
 
104
Calories from Fat 63
% Daily Value*
Fat
 
7
g
11
%
Saturated Fat
 
1
g
5
%
Polyunsaturated Fat
 
1
g
Monounsaturated Fat
 
5
g
Sodium
 
152
mg
6
%
Potassium
 
275
mg
8
%
Carbohydrates
 
9
g
3
%
Fiber
 
2
g
8
%
Sugar
 
5
g
6
%
Protein
 
2
g
4
%
Vitamin A
 
14
IU
0
%
Vitamin C
 
6
mg
7
%
Calcium
 
19
mg
2
%
Iron
 
1
mg
6
%
* Percent Daily Values are based on a 2000 calorie diet.
Tried this Recipe? Pin it for Later!Mention @EasyHealthllc or tag #EasyHealthllc!

Was this recipe/article helpful? Tell us how we can help you: meal plans? recipes?

Yes
No
Thanks for your feedback!

More Diabetes Diet

  • Diabetes friendly dessert on white plate.
    10 Best Diabetes Friendly Dessert Recipes
  • egg roll mixture in wok
    Egg Roll in a Bowl
  • collage with scones, adding cups and low carb breakfast without eggs ideas
    Low Carb Breakfast Without Eggs
  • overnight oat cup -Greek yogurt cup topped with sliced banana and slivered almonds
    Overnight Oats for Diabetics
826 shares

Comments

  1. Luisa Fijman says

    June 27, 2021 at 12:49 pm

    5 stars
    Very easy and flavorful. Full of nutrients.

    Reply
  2. Danielle says

    April 12, 2023 at 9:46 pm

    I’m doing the HCG diet and need recipes without oil. Do you have any suggestions? I love mushrooms and onions so I would love to be able to incorporate this recipe somehow without oil. Any suggestions?

    Reply
    • Charlotte says

      April 20, 2023 at 2:52 pm

      Maybe try cooking in a non stick pan on low heat and cover the pan to retain moisture. Hope that helps!

      Reply
4.46 from 35 votes (34 ratings without comment)

Leave a Reply Cancel reply

Your email address will not be published. Required fields are marked *

Recipe Rating




This site uses Akismet to reduce spam. Learn how your comment data is processed.

Hi, I'm Charlotte

Welcome to Easyhealth Living! Are you looking for healthy diabetes-friendly/low carb recipes? Come cook with me!

More about me→

Spring Favorites

  • weights, apple, water bottle and tape measure
    Weight Loss Resources

  • shredded chicken thighs with onions, bbq sauce and melted cheese in iron skillet
    Low Carb BBQ Chicken Thighs

  • plate with cheese sticks, boiled egg halves, cherry tomatoes
    30 Low Carb Snacks

  • keto alfredo in blog skillet
    Low Carb Chicken Alfredo

Footer

↑ back to top
  • Privacy Policy
  • Affiliate Disclosure
  • About Us
  • Contact
  • Web Stories

This website does not diagnose or treat medical conditions. Please consult with your health care professional before making any changes in your health routines. Please note-nutrition data may vary based on multiple factors.

All rights reserved - Copyright © 2013-2025 Easyhealth LLC

  • Pinterest
  • Facebook
  • Email
  • X
  • Flipboard
826 shares

Rate This Recipe

Your vote:




A rating is required
A name is required
An email is required

Recipe Ratings without Comment

Something went wrong. Please try again.