How many servings does this recipe make?

This recipe makes 4 servings. You can adjust the portion size directly on this page.

What ingredients do I need for Egg, Spinach, And Mushroom Slow Cooker Casserole?

You need 10 ingredients. The key ingredients include: 1 (24 ounce) carton cottage cheese, 6 eggs, 1/3 cup all-purpose flour, 3 tablespoons chopped onion, and more.

Is Egg, Spinach, And Mushroom Slow Cooker Casserole suitable as vegetarian?

Yes, Egg, Spinach, And Mushroom Slow Cooker Casserole falls under the Vegetarian category and is a great choice for this type of meal.

How do I store leftover Egg, Spinach, And Mushroom Slow Cooker Casserole?

Store leftovers in an airtight container in the refrigerator for up to 3–4 days. Reheat gently before serving.

Egg, Spinach, And Mushroom Slow Cooker Casserole

Name: Egg, Spinach, And Mushroom Slow Cooker Casserole
Prep time: 15 min
Cook time: 30 min
Total time: 45 min
Yield: 4 servings
Ingredients: 1 (24 ounce) carton cottage cheese; 6 eggs; 1/3 cup all-purpose flour; 3 tablespoons chopped onion; 2 tablespoons melted butter; 1/2 teaspoon salt; 1/4 teaspoon ground black pepper; 2 cups shredded Cheddar cheese; 1 (8 ounce) package sliced fresh mushrooms; 1 (7 ounce) bag fresh spinach

Try this homemade Egg, Spinach, And Mushroom Slow Cooker Casserole recipe the whole family will love. Made with cottage cheese, eggs, flour and onion. E…

This Egg, Spinach, And Mushroom Slow Cooker Casserole relies on simple, everyday ingredients such as eggs, all-purpose flour, chopped onion and melted butter. It comes together quickly and makes 4 servings, at about 645 kcal each. The step-by-step instructions below are written to be easy to follow, even on a busy day.

It's versatile enough for an easy weeknight dinner yet satisfying enough for guests at the weekend. Serve it with your favorite sides, and keep any leftovers for a quick meal the next day.

Updated Jun 30, 2026

Serves 4 Vegetarian

Tips for the best results

Read through all the steps once before you start and measure out your ingredients first — it makes everything go more smoothly.
Taste as you go and adjust the seasoning before serving.
Avoid overcrowding the pan — cook in batches if needed for the best texture.
Let the dish rest for a few minutes before serving so the flavors settle.
Store leftovers in an airtight container in the fridge and enjoy within a few days.

Variations & substitutions

Use a neutral oil or a plant-based spread in place of butter for a dairy-free version.
A good 1:1 gluten-free flour blend works well if you need a gluten-free version.

No specific allergen information. Please check the ingredient list for possible allergens.

My Personal Notes

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Egg, Spinach, And Mushroom Slow Cooker Casserole

Tips for the best results

Variations & substitutions

My Personal Notes

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Frequently Asked Questions