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 Baked Mushrooms With Spinach?

You need 10 ingredients. The key ingredients include: 2 packages (10 ounces each) frozen chopped spinach, thawed and squeezed dry, 1 pound large fresh mushrooms, 2 tablespoons finely chopped onion, 4 tablespoons butter, divided, and more.

Is Baked Mushrooms With Spinach suitable as vegetarian?

Yes, Baked Mushrooms With Spinach falls under the Vegetarian category and is a great choice for this type of meal.

How do I store leftover Baked Mushrooms With Spinach?

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

Baked Mushrooms With Spinach Recipe

Name: Baked Mushrooms With Spinach
Prep time: 15 min
Cook time: 30 min
Total time: 45 min
Yield: 4 servings
Ingredients: 2 packages (10 ounces each) frozen chopped spinach, thawed and squeezed dry; 1 pound large fresh mushrooms; 2 tablespoons finely chopped onion; 4 tablespoons butter, divided; 4 bacon strips, cooked and crumbled; 1 cup whole milk; 1 cup shredded cheddar cheese; 1/2 teaspoon ground mustard; 1/2 teaspoon salt; Dash pepper

Try this homemade Baked Mushrooms With Spinach recipe the whole family will love. Made with spinach, mushrooms, onion and butter. Easy step-by-step inst…

This Baked Mushrooms With Spinach relies on simple, everyday ingredients such as large fresh mushrooms, finely chopped onion, butter, divided and whole milk. It comes together quickly and makes 4 servings, at about 844 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.

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

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Baked Mushrooms With Spinach

Tips for the best results

Variations & substitutions

My Personal Notes

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