Cheesy Spinach & Mushroom Casserole

4.6
(8)
7 Reviews

Both homey and healthful, this cheesy dream of a casserole is loaded with nutrients from spinach, and super savory and lip-smack-y from all the sautéed mushrooms. Any 'shroom will do, so pick your fave.

By
Carolyn Casner
Carolyn Casner

Carolyn Casner is a longtime recipe tester and contributor for EatingWell. Over the years, she has tested and developed hundreds of recipes for the magazine and website.

EatingWell's Editorial Guidelines
Updated on April 19, 2024
Tested by
EatingWell Test Kitchen
Eating Well Bio Page
Tested by EatingWell Test Kitchen

The EatingWell Test Kitchen is comprised of a group of culinary professionals who develop and test our recipes. Our recipes go through a rigorous process, which includes testing by trained recipe testers, using different equipment (e.g., gas and electric stoves) and a variety of tools and techniques to make sure that it will really work when you make it at home. Testers shop major supermarkets to research availability of ingredients. Finally, a Registered Dietitian reviews each recipe to ensure that we deliver food that's not only delicious, but adheres to our nutrition guidelines as well. Learn more about our food philosophy and nutrition parameters.

Meet the EatingWell Test Kitchen
Reviewed by Dietitian
Emily Lachtrupp, M.S., RD
Emily Lachtrupp Headshot
Reviewed by Dietitian Emily Lachtrupp, M.S., RD

Emily Lachtrupp is a registered dietitian experienced in nutritional counseling, recipe analysis and meal plans. She's worked with clients who struggle with diabetes, weight loss, digestive issues and more. In her spare time, you can find her enjoying all that Vermont has to offer with her family and her dog, Winston.

EatingWell's Editorial Guidelines
Cheesy Spinach & Mushroom Casserole
Photo: Photographer / Brie Passano, Food Stylist / Annie Probst, Prop Stylist / Holly Raibikis
Active Time:
30 mins
Total Time:
1 hr 15 mins
Servings:
8
Nutrition Profile:
Nut-Free Healthy Pregnancy Soy-Free Vegetarian High-Protein Gluten-Free
Jump to Nutrition Facts
Cook Mode (Keep screen awake)

Ingredients

  • 2 tablespoons extra-virgin olive oil

  • 1 medium onion, chopped

  • 1 (8 ounce) package mushrooms, halved and sliced

  • 2 large cloves garlic, minced

  • 1 (16-ounce) package plus 1 10-ounce package frozen chopped spinach, thawed and squeezed dry

  • 1 ½ cups shredded extra-sharp Cheddar cheese, divided

  • 2 large eggs, beaten

  • 2 tablespoons milk

  • ¼ teaspoon salt

  • ¼ teaspoon ground pepper

Directions

  1. Preheat oven to 350°F. Coat an 8-inch-square baking dish with cooking spray. Heat oil in a large skillet over medium heat. Add onion and cook, stirring, until softened and starting to brown, about 4 minutes.Add mushrooms and garlic; cook, stirring, until the mushrooms have softened, about 4 minutes. Transfer to a large bowl.

  2. Add spinach, 1 cup cheese, eggs, milk, salt and pepper to the mushroom mixture. Stir until well combined. Transfer to the prepared baking dish, cover with foil and bake for 40 minutes. Remove from the oven and sprinkle with the remaining 1/2 cup cheese. Bake, uncovered, until the cheese is melted, about 5 minutes more.

Originally appeared: EatingWell.com, March 2022

Nutrition Facts (per serving)

177 Calories
12g Fat
7g Carbs
11g Protein
Nutrition Facts
Servings Per Recipe 8
Serving Size 1/2 cup
Calories 177
% Daily Value *
Total Carbohydrate 7g 3%
Dietary Fiber 3g 11%
Total Sugars 2g
Protein 11g 22%
Total Fat 12g 15%
Saturated Fat 5g 25%
Cholesterol 68mg 23%
Vitamin A 11141IU 223%
Vitamin C 7mg 8%
Vitamin D 17IU 4%
Vitamin E 3mg 22%
Folate 151mcg 38%
Vitamin K 343mcg 286%
Sodium 301mg 13%
Calcium 287mg 22%
Iron 2mg 11%
Magnesium 78mg 19%
Potassium 498mg 11%
Zinc 2mg 18%

Nutrition information is calculated by a registered dietitian using an ingredient database but should be considered an estimate.

* Daily Values (DVs) are the recommended amounts of nutrients to consume each day. Percent Daily Value (%DV) found on nutrition labels tells you how much a serving of a particular food or recipe contributes to each of those total recommended amounts. Per the Food and Drug Administration (FDA), the daily value is based on a standard 2,000 calorie diet. Depending on your calorie needs or if you have a health condition, you may need more or less of particular nutrients. (For example, it’s recommended that people following a heart-healthy diet eat less sodium on a daily basis compared to those following a standard diet.)

(-) Information is not currently available for this nutrient. If you are following a special diet for medical reasons, be sure to consult with your primary care provider or a registered dietitian to better understand your personal nutrition needs.

Related Articles

6817070.jpg
Tomato, Feta & Spinach-Stuffed Portobello Mushrooms
25 mins
3759010.jpg
Wild Mushroom & Polenta Casserole
1 hr 45 mins
7651507.jpg
Cheesy Mushroom Gratin
1 hr
6913682.jpg
Creamed Spinach Casserole
1 hr 15 mins
5487426.jpg
Caprese Stuffed Portobello Mushrooms
40 mins
3757267.jpg
Layered Mashed Potato & Mushroom Casserole
2 hrs
5292083.jpg
Two-Bean Enchilada Casserole
1 hr 10 mins
7818534.jpg
Roasted Mushrooms with Brown Butter & Parmesan
30 mins
4572443.jpg
Parmesan Scalloped Potatoes with Spinach
1 hr
Low-Carb Broccoli & Cheddar Casserole
Low-Carb Broccoli & Cheddar Casserole
50 mins
Parmesan Mushroom Casserole
Parmesan Mushroom Casserole
1 hr
5177788.jpg
Fresh Green Bean Casserole
1 hr
6343077.jpg
Sautéed Green Beans with Tomatoes, Mushrooms & Garlic
30 mins
Loaded Cauliflower Casserole
Loaded Cauliflower Casserole
1 hr
Mushroom & Carolina Gold Rice Stuffed Cabbage Rolls
Mushroom & Carolina Gold Rice Stuffed Cabbage Rolls
2 hrs 30 mins
Vegetarian Spaghetti Squash Lasagna
Vegetarian Spaghetti Squash Lasagna
1 hr 10 mins