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 Spaghetti Spinach Casserole?

You need 10 ingredients. The key ingredients include: 1/3 c. corn oil, 2 c. sliced mushrooms (16 oz.), 3/4 c. chopped onion, 1 (10 oz.) pkg. frozen chopped spinach, thawed and well drained, and more.

Is Spaghetti Spinach Casserole suitable as pasta & noodles?

Yes, Spaghetti Spinach Casserole falls under the Pasta & Noodles category and is a great choice for this type of meal.

How do I store leftover Spaghetti Spinach Casserole?

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

Spaghetti Spinach Casserole Recipe

Name: Spaghetti Spinach Casserole
Prep time: 15 min
Cook time: 30 min
Total time: 45 min
Yield: 4 servings
Ingredients: 1/3 c. corn oil; 2 c. sliced mushrooms (16 oz.); 3/4 c. chopped onion; 1 (10 oz.) pkg. frozen chopped spinach, thawed and well drained; 1 (16 oz.) container low-fat cottage cheese (can use 1/2 tofu); 1/2 tsp. salt; 1/4 tsp. ground nutmeg; 1/4 tsp. pepper; 1 (8 oz.) pkg. thin spaghetti, cooked and drained; 1 c. shredded part skim Mozzarella cheese

Try this homemade Spaghetti Spinach Casserole recipe the whole family will love. Made with corn oil, mushrooms, onion and cottage cheese. Easy step-by-s…

This Spaghetti Spinach Casserole relies on simple, everyday ingredients such as corn oil, sliced mushrooms (16 oz.), chopped onion and salt. It comes together quickly and makes 4 servings, at about 336 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 Pasta & Noodles

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

Feel free to swap in similar ingredients you already have on hand and adjust seasoning to taste.

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

My Personal Notes

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Spaghetti Spinach Casserole

Tips for the best results

Variations & substitutions

My Personal Notes

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