Sautéed Spinach, Mushrooms, and Caramelized Onions

Sautéed Spinach, Mushrooms, and Caramelized Onions - a delicious side dish recipe that will go great with lots of main dishes. Serve it with pasta, grilled meats, or seafood. You can also make it instead of gravy for the holidays (Thanksgiving and Christmas).

The flavors of mushrooms, spinach, caramelized onions, garlic, and Parmesan cheese mingle really well in this meatless recipe. It's quite versatile: you can eat it as-is, especially if you're craving some good-tasting, creamy vegetables.  You can serve it alongside some pasta, ravioli, or tortellini. It is also great with grilled steak, pork, or chicken.

For me, personally, this delicious Sautéed Spinach with Mushrooms and Caramelized Onions is a favorite side dish for grilled meats. The recipe is flexible: you can exclude the creamy sauce and Parmesan cheese if you're trying to eat a little bit healthier (even though the recipe doesn't use much of either). You can also omit onions if you don't like them, or, if you don't have time to caramelize them, saute them.

4.93 from 27 votes

Sautéed Spinach, Mushrooms, and Caramelized Onions

Delicious Sautéed Spinach with Mushrooms and Caramelized Onions is a favorite side dish for grilled meats.  This meatless recipe is quite versatile: you can eat it as-is, or you can serve it alongside some pasta, ravioli, or tortellini. It is also great with grilled steak, pork, or chicken.

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Prep Time 10 mins

Cook Time 30 mins

Total Time 40 mins

Course sauce, Side Dish

Cuisine American, Italian

Servings 4 people

Calories per serving 301 kcal

Author: Julia

Ingredients

Caramelized onions

• 1 tablespoon olive oil
• 3 yellow onions , large, sliced
• ¼ teaspoon salt
• 1 tablespoon balsamic vinegar

Other ingredients

• 1 tablespoon olive oil
• 10 oz mushrooms , sliced (I used button mushrooms)
• 6 oz spinach
• 1 cup half-and-half
• 1 cup Parmesan cheese , shredded
• ¼ teaspoon salt

US Customary - Metric

Instructions 

How to caramelize onions:

• Heat 1 tablespoon olive oil on medium-high heat in a large skillet. Add sliced onions and cook on high heat for about 10 minutes, constantly stirring with the spatula.
• The onions should start to brown, but without burning.
• Reduce heat to medium and continue cooking onions for 10 more minutes, continuing to stir, as onions brown even more without burning. At this point add a pinch of salt over onions.
• Continue cooking for 10 more minutes on medium or low heat, stirring occasionally to make sure onions don’t stick to the bottom of the pan or burn.
• In total, you should have cooked onions for 30 minutes.
• Remove the skillet from heat and sprinkle the onions with a small amount of balsamic vinegar to deglaze the pan.
• Using a spatula, stir the onions, scraping the bottom of the pan and coating onions with a pinch of balsamic vinegar you just added. Remove caramelized onions to a plate.

How to cook mushrooms and spinach:

• Heat 1 tablespoon olive oil in the same skillet on medium heat. Add sliced mushrooms. Sprinkle with a pinch of salt.
• Cook mushrooms for about 5 minutes, occasionally stirring, until mushrooms are soft.
• Add fresh spinach to the skillet and stir on low heat just until spinach starts to wilt.

How to make a creamy sauce

• Add half-and-half to the mushroom and spinach mixture and bring to a quick boil. Immediately reduce to simmer.
• Add ⅔ cup of shredded Parmesan cheese and ¼ teaspoon salt. Keep stirring while the sauce simmers until the cheese melts.
• Add caramelized onions back to the skillet with the pasta sauce.
• If the sauce is too thick, add a small amount of half-and-half to thin it out. If it is too thin, add a small amount of shredded Parmesan cheese, and stir it in, while the sauce simmers.

Notes

Substitute for half-and-half:  Use ½ cup of heavy cream + ½ cup of milk instead of 1 cup of half-and-half.

Nutrition

Nutrition Information

Sautéed Spinach, Mushrooms, and Caramelized Onions

Amount per Serving

Calories

301

% Daily Value*

Fat

 

21

g

32

%

Saturated Fat

 

9

g

56

%

Polyunsaturated Fat

 

1

g

Monounsaturated Fat

 

9

g

Cholesterol

 

38

mg

13

%

Sodium

 

770

mg

33

%

Potassium

 

691

mg

20

%

Carbohydrates

 

16

g

5

%

Fiber

 

3

g

13

%

Sugar

 

8

g

9

%

Protein

 

15

g

30

%

Vitamin A

 

4399

IU

88

%

Vitamin C

 

20

mg

24

%

Calcium

 

425

mg

43

%

Iron

 

2

mg

11

%

* Percent Daily Values are based on a 2000 calorie diet.

The nutritional information on this website is only an estimate and is provided for convenience and as a courtesy only. The accuracy of the nutritional information for any recipe on this site is not guaranteed. It should not be used as a substitute for a professional nutritionist’s advice.

Keyword onion sauce, spinach mushrooms onions

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