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 Johnny Marzetti Casserole?

You need 12 ingredients. The key ingredients include: 2 lb. hamburger, browned and drained, 1 small onion, chopped, 1 green pepper, chopped, 1 c. celery, chopped, and more.

Is Johnny Marzetti Casserole suitable as soups & stews?

Yes, Johnny Marzetti Casserole falls under the Soups & Stews category and is a great choice for this type of meal.

How do I store leftover Johnny Marzetti Casserole?

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

Johnny Marzetti Casserole Recipe

Name: Johnny Marzetti Casserole
Prep time: 15 min
Cook time: 30 min
Total time: 45 min
Yield: 4 servings
Ingredients: 2 lb. hamburger, browned and drained; 1 small onion, chopped; 1 green pepper, chopped; 1 c. celery, chopped; 1 small can mushrooms, chopped; 1 small jar green olives, sliced; 1/2 c. black olives, sliced; 1 Tbsp. oleo; 1 c. tomato soup; 2 small cans tomato sauce; 1 (10 oz.) pkg. noodles, cooked; Mozzarella cheese, shredded

Try this homemade Johnny Marzetti Casserole recipe the whole family will love. Made with hamburger, onion, green pepper and celery. Easy step-by-step in…

This Johnny Marzetti Casserole relies on simple, everyday ingredients such as small onion, chopped, green pepper, chopped, celery, chopped and small can mushrooms, chopped. It comes together quickly and makes 4 servings, at about 505 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

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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Johnny Marzetti Casserole

Tips for the best results

Variations & substitutions

My Personal Notes

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