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 Italian Square Zucchini Casserole?

You need 11 ingredients. The key ingredients include: 3 c. zucchini, grated, 1 c. Bisquick, 1/2 c. onion, 1/2 c. Parmesan cheese, and more.

Is Italian Square Zucchini Casserole suitable as vegetarian?

Yes, Italian Square Zucchini Casserole falls under the Vegetarian category and is a great choice for this type of meal.

How do I store leftover Italian Square Zucchini Casserole?

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

Italian Square Zucchini Casserole Recipe

Name: Italian Square Zucchini Casserole
Prep time: 15 min
Cook time: 30 min
Total time: 45 min
Yield: 4 servings
Ingredients: 3 c. zucchini, grated; 1 c. Bisquick; 1/2 c. onion; 1/2 c. Parmesan cheese; 1/2 tsp. salt; 1/2 tsp. oregano; 1/2 tsp. garlic powder; 1/2 c. green pepper, chopped; 1/2 c. pepperoni, chopped; 1/2 c. oil; 4 eggs, slightly beaten

Try this homemade Italian Square Zucchini Casserole recipe the whole family will love. Made with zucchini, Bisquick, onion and Parmesan cheese. Easy ste…

This Italian Square Zucchini Casserole relies on simple, everyday ingredients such as zucchini, grated, bisquick, onion and parmesan cheese. It comes together quickly and makes 4 servings, at about 601 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

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

Saved locally in your browser — visible only to you.

Italian Square Zucchini Casserole

Tips for the best results

Variations & substitutions

My Personal Notes

How did you like this recipe?

Frequently Asked Questions