Slow Cooker Herbed Mushrooms and Onions

These Buttery Slow Cooker Herbed Mushrooms and Onions are a great topping for burgers, a must for summer barbecues!

We love easy summer recipes like this one. We make this steak topping along with Slow Cooker Jalapeno Corn for an easy dinner!

Slow cooked onion and mushrooms are amazing and easily done right in the slow cooker. Top a burger or steak with these buttery vegetables.

How to make mushrooms and onions in the slow cooker:

• Mushrooms – sliced button mushrooms
• Onions – sweet yellow onions
• Butter – salted butter (this helps make a rich sauce)
• Garlic – minced
• Seasonings – basil, thyme, salt and pepper

How long do I cook?

• Place the lid on the slow cooker.
• Cook on HIGH for 4 hours or LOW for 7.

What can I serve this on?

• Grilled Steak – Recipe by Bobby Flay
• Barbecued Chicken
• Hamburgers
• Baked Potatoes

More summer recipes to try in your slow cooker:

• Slow Cooker Apple Barbecue Pork Loin
• Slow Cooker Peachy Barbecue Ribs
• Slow Cooker Milk and Honey Corn on the Cob
• Slow Cooker Root Beer Chicken

Want to make more magic in your crockpot? Stay up to date and subscribe to my newsletter and follow along on Facebook, Instagram, Pinterest and YouTube.

Slow Cooker Herbed Mushrooms and Onions

5 from 2 votes

Buttery and seasoned mushrooms and onions for topping your favorite main dishes.

Print Pin Rate

Course: Main Course, Side Dish

Cuisine: American

Keyword: mushrooms and onions

Prep Time: 10 minutes

Cook Time: 4 hours

Total Time: 4 hours 10 minutes

Servings: 10

Calories: 117kcal

Author: Sarah Olson

Equipment Needed:

• Slow Cooker- 6 quart or larger
  Slow Cooker- 6 quart or larger

Ingredients:

• 4 cups sliced sweet yellow onion I used 2 large onions4 cups sliced sweet yellow onion I used 2 large onions
• 4 cups sliced mushrooms4 cups sliced mushrooms
• 1/2 cup salted butter sliced1/2 cup salted butter sliced
• 1/2 tsp. dried oregano1/2 tsp. dried oregano
• 1/2 tsp. dried thyme1/2 tsp. dried thyme
• 1/2 tsp. sea salt1/2 tsp. sea salt
• 1/2 tsp. coarse ground black pepper1/2 tsp. coarse ground black pepper
• 2 garlic cloves minced2 garlic cloves minced

US Customary – Metric

Instructions:

• Add the onions and mushrooms into the slow cooker. Add the sliced butter, seasonings, and garlic.
• Cover and cook on HIGH for 4 hours without opening the lid during the cooking time.
• Serve and enjoy!

Recipe Notes:

What can I put this on?

• Grilled Steak
• Barbecue Chicken
• Hamburgers
• Baked Potatoes

 

Nutrition:

Calories: 117kcal | Carbohydrates: 8g | Protein: 2g | Fat: 9g | Saturated Fat: 6g | Cholesterol: 24mg | Sodium: 202mg | Potassium: 216mg | Fiber: 2g | Sugar: 3g | Vitamin A: 284IU | Vitamin C: 6mg | Calcium: 21mg | Iron: 1mg

Made this recipe?I want to see your photos! Tag me on Instagram @themagicalslowcooker