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 Slow Cooker Mushroom Stuffing?

You need 14 ingredients. The key ingredients include: 1/4 cup butter, cubed, 1 pound baby portobello mushrooms, coarsely chopped, 4 celery ribs, chopped, 1 large onion, chopped, and more.

Is Slow Cooker Mushroom Stuffing suitable as soups & stews?

Yes, Slow Cooker Mushroom Stuffing falls under the Soups & Stews category and is a great choice for this type of meal.

How do I store leftover Slow Cooker Mushroom Stuffing?

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

Slow Cooker Mushroom Stuffing Recipe

Name: Slow Cooker Mushroom Stuffing
Prep time: 15 min
Cook time: 30 min
Total time: 45 min
Yield: 4 servings
Ingredients: 1/4 cup butter, cubed; 1 pound baby portobello mushrooms, coarsely chopped; 4 celery ribs, chopped; 1 large onion, chopped; ½ cups unseasoned stuffing cubes; 1/4 cup chopped fresh parsley; 1-1/2 teaspoons rubbed sage; 1 teaspoon salt; 1 teaspoon dried thyme; 1 teaspoon poultry seasoning; 1/2 teaspoon dried marjoram; 1/2 teaspoon pepper; 2 large eggs, lightly beaten; 3 cups vegetable broth

Try this homemade Slow Cooker Mushroom Stuffing recipe the whole family will love. Made with butter, portobello mushrooms, celery and onion. Easy step-b…

This Slow Cooker Mushroom Stuffing relies on simple, everyday ingredients such as butter, cubed, celery ribs, chopped, large onion, chopped and unseasoned stuffing cubes. It comes together quickly and makes 4 servings, at about 242 kcal each. The step-by-step instructions below are written to be easy to follow, even on a busy day.

It works as a light main on its own or as a starter alongside crusty bread, and it's just as good for a cozy night in as it is for feeding a crowd. Leftovers keep well, so it's a smart choice for meal prep too.

Updated Jun 30, 2026

Serves 4 Soups & Stews

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.

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

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Slow Cooker Mushroom Stuffing

Tips for the best results

Variations & substitutions

My Personal Notes

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Frequently Asked Questions