Creamy Zucchini Casserole: A Comforting And Cozy Dish

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Save this recipe! If you only have room for one zucchini casserole recipe in your cook book, then this is the one. Creamy Zucchini Casserole contains eggs making the consistency similar to a soufflé. It’s the best ever zucchini casserole.

If you only have room for one zucchini casserole recipe in your cook book, then this is the one. Creamy Zucchini Casserole contains eggs making the consistency similar to a soufflé.

Ingredients for the Best Ever Zucchini Casserole

This is my favorite zucchini casserole, and I have a ton of zucchini casseroles in my cook book. Once I start eating this casserole, I literally cannot stop. I’ll take a helping, and then another helping and then as I’m cleaning up after dinner, I’ll scoop a little into my mouth and then when nobody is looking, I’ll lick the extra bits off the spoon before I wash it.

This zucchini bake recipe originated in my Brown County Cookery Cook Book. My dear friend Jen loaned my these old cook books that she got from a relative. She knew I’d love to flip through them, and she was correct. I found so many tasty recipes; however, this one was the very first recipe I conquered.

  • Fresh Zucchini
  • Large Eggs
  • Mayonnaise
  • Onion
  • Green Pepper
  • Grated Parmesan Cheese
  • Salt and Black Pepper
  • Onion Powder
  • Butter
  • Cracker Crumbs or Bread Crumbs

The beaten eggs and mayo give the cheesy zucchini casserole a creamy texture that makes it so scrumptious. I also love how the crunchy topping perfectly complements the creamy texture. It’s a match made in heaven when it comes to casserole textures.

If you only have room for one zucchini casserole recipe in your cook book, then this is the one. Creamy Zucchini Casserole contains eggs making the consistency similar to a soufflé.

How to Make Zucchini Casserole in the Oven

Step by Step Instructions

  1. Preheat oven to 350 degrees F. Spray a 1 1/2 quart baking dish with nonstick cooking spray.
  2. Dice zucchini into cubes. Boil in water for 10-12 minutes in a large saucepan of boiling water until fork tender. Drain well in a colander.
  3. In a large bowl, beat eggs. Add mayo, chopped onion, mayo, finely diced green pepper, grated Parm, onion powder, salt and black pepper (to taste); stir well.
  4. Stir in slightly cooled and drained zucchini.
  5. Pour mixture into prepared pan.
  6. Mix melted butter and crushed cracker crumbs. Sprinkle evenly over top the casserole.
  7. Bake in preheated oven for 30 – 35 minutes or until bubbly. If it’s not golden brown on top, broil, watching closely, for a few minutes.
  8. Let set out for 5-10 minutes before serving to let it set up.
If you only have room for one zucchini casserole recipe in your cook book, then this is the one. Creamy Zucchini Casserole contains eggs making the consistency similar to a soufflé.

Storage Instructions

Let leftovers cool completely. Cover tightly or transfer to an airtight container, and store in the refrigerator for up to a week.

For the full ingredient amounts and recipe steps for zucchini bake, scroll to the recipe card at the bottom of this post.

If you only have room for one zucchini casserole recipe in your cook book, then this is the one. Creamy Zucchini Casserole contains eggs making the consistency similar to a soufflé.

Recipe FAQs for Creamy Zucchini Casserole

  • Be sure to drain the cooked zucchini well so that you don’t get a soggy casserole.
  • Also, be sure to let the zucchini cool off before adding it to the remaining ingredients. Nobody wants scrambled eggs for this dish.
  • I use the cheap grated parmesan in the green container for this recipe.
  • For the cracker crumbs, I usually crush up Saltines or Ritz Butter crackers.
  • I prefer regular mayonnaise for this recipe as opposed to Miracle Whip.
  • There is no need to peel the zucchini.
If you only have room for one zucchini casserole recipe in your cook book, then this is the one. Creamy Zucchini Casserole contains eggs making the consistency similar to a soufflé.

Recipe Variations

  • Omit green bell peppers, if desired. Or swap in red peppers or other colors of bell peppers.
  • The base recipe is so tasty. Use other vegetables such as broccoli or cauliflower instead of zucchini.
  • Omit onion powder, if necessary, or use garlic powder instead.
  • Use any type of crunchy toppings such as packaged bread crumbs, crushed cornflakes, French Fried Onions, panko breadcrumbs, or any flavor of crushed crackers.
  • Substitute margarine for butter for the buttery, crunchy topping.
  • Add your favorite herbs or dried herbs.
  • Instead of grated parmesan, use other types of cheeses if desired such as Gruyere cheese, cheddar cheese or Gouda.
If you only have room for one zucchini casserole recipe in your cook book, then this is the one. Creamy Zucchini Casserole contains eggs making the consistency similar to a soufflé.

Can I refrigerate a casserole before baking?

Yes, you can refrigerate a casserole before baking. This can actually help the flavors meld together better. Just be sure to cover it tightly to prevent it from drying out. Before baking, let it warm up to room temperature or consider adding a few extra minutes of cook time if the casserole is cold when it gets put in the oven.

Can you cook zucchini with the skin on?

Yes, a zucchini skin is thin and edible. Leave it intact when using it in baking and cooking.

How can I enhance the flavor of zucchini?

Zucchini is a flavor-neutral food, and it tends to take on the flavors of the other ingredients that are with it. To enhance the flavor of zucchini, you can try adding various herbs and spices such as garlic, thyme, basil, or oregano. You can also experiment with adding different types of cheese, like Gruyère or cheddar, to create a richer taste. Additionally, consider incorporating ingredients such as bacon, caramelized onions, or sun-dried tomatoes for added depth of flavor. Zucchini is also great in Italian, Mexican, Indian and other cuisines.

If you only have room for one zucchini casserole recipe in your cook book, then this is the one. Creamy Zucchini Casserole contains eggs making the consistency similar to a soufflé.

Zucchini Recipes

How do you keep zucchini casserole from getting watery?

The trick to preventing a soggy zucchini casserole is to drain the cooked zucchini very well before adding it to the other ingredients. Also, be sure to use some type of binding ingredient in the casserole. Beaten eggs, bread crumbs or cracker crumbs and mayonnaise are examples of ingredients that will bind everything together.

Will cut up zucchini turn brown?

Yes, oxidation can occur causing the zucchini to turn brown if it’s exposed too long to air. With that being said, it’s best to cut up the zucchini right before using it in a casserole or dish.

If you only have room for one zucchini casserole recipe in your cook book, then this is the one. Creamy Zucchini Casserole contains eggs making the consistency similar to a soufflé.

What to serve with creamy zucchini casserole?

Zucchini casserole as a side dish is about as versatile a dish as there is. I love serving zucchini casserole along side of grilled meats such as steak, pork chops or brats. It also tastes great along side of those down-home classic comfort dishes such as beef tips and gravy, Swiss steak, cubed steak, chicken and noodles etc. Check out the list of my favorite dishes to serve with zucchini casserole.

If you only have room for one zucchini casserole recipe in your cook book, then this is the one. Creamy Zucchini Casserole contains eggs making the consistency similar to a soufflé.

Kitchen Utensils to Make Zucchini Casserole

If you only have room for one zucchini casserole recipe in your cook book, then this is the one. Creamy Zucchini Casserole contains eggs making the consistency similar to a soufflé.
Print Recipe

Creamy Zucchini Casserole: A Comforting And Cozy Dish

If you only have room for one zucchini casserole recipe in your cook book, then this is the one. Creamy Zucchini Casserole contains eggs making the consistency similar to a soufflé. It's the best ever zucchini casserole.
Prep Time25 minutes
Cook Time30 minutes
Total Time55 minutes
Course: Casserole, Side Dish
Cuisine: American
Keyword: baked squash and zucchini casserole, cheesy zucchini casserole, creamy zucchini casserole, the best zucchini casserole, zucchini bake
Servings: 12 servings
Calories: 116kcal
Author: Barbara

Ingredients

  • 4 cups cubed fresh zucchini
  • 2 large eggs
  • 1 cup mayonnaise
  • 1 chopped onion
  • 1/4 cup finely diced green pepper
  • 1 cup grated Parmesan cheese
  • 1 teaspoon onion powder
  • salt and black pepper, to taste
  • 1 Tablespoon butter
  • 1/4 cup cracker crumbs or bread crumbs

Instructions

  • Preheat oven to 350 degrees F. Grease a 1 1/2 quart baking dish.
  • In a saucepan, cook zucchini in boiling water until fork tender, approximately 10 – 15 minutes.
    If you only have room for one zucchini casserole recipe in your cook book, then this is the one. Creamy Zucchini Casserole contains eggs making the consistency similar to a soufflé.
  • Drain well in a colander, and let cool slightly.
    If you only have room for one zucchini casserole recipe in your cook book, then this is the one. Creamy Zucchini Casserole contains eggs making the consistency similar to a soufflé.
  • In a large bowl, beat eggs.
    If you only have room for one zucchini casserole recipe in your cook book, then this is the one. Creamy Zucchini Casserole contains eggs making the consistency similar to a soufflé.
  • Add mayo, onion, green pepper, Parmesan cheese, onion powder and salt and pepper, and mix.
    If you only have room for one zucchini casserole recipe in your cook book, then this is the one. Creamy Zucchini Casserole contains eggs making the consistency similar to a soufflé.
  • Stir in zucchini.
    If you only have room for one zucchini casserole recipe in your cook book, then this is the one. Creamy Zucchini Casserole contains eggs making the consistency similar to a soufflé.
  • Pour into the prepared dish.
    If you only have room for one zucchini casserole recipe in your cook book, then this is the one. Creamy Zucchini Casserole contains eggs making the consistency similar to a soufflé.
  • Combine melted butter and cracker crumbs.
    If you only have room for one zucchini casserole recipe in your cook book, then this is the one. Creamy Zucchini Casserole contains eggs making the consistency similar to a soufflé.
  • Sprinkle cracker crumb mixture evenly over top. Bake in preheated oven for 30 – 35 minutes or until bubbly.
    If you only have room for one zucchini casserole recipe in your cook book, then this is the one. Creamy Zucchini Casserole contains eggs making the consistency similar to a soufflé.
  • If it is bubbly but not browned, broil, watching closely until golden brown on top.
    If you only have room for one zucchini casserole recipe in your cook book, then this is the one. Creamy Zucchini Casserole contains eggs making the consistency similar to a soufflé.
  • Let cool for 5 – 10 minutes before serving.
    If you only have room for one zucchini casserole recipe in your cook book, then this is the one. Creamy Zucchini Casserole contains eggs making the consistency similar to a soufflé.

Notes

    • Be sure to drain the cooked zucchini well so that you don’t get a soggy casserole.
    • Also, be sure to let the zucchini cool off before adding it to the remaining ingredients. Nobody wants scrambled eggs for this dish.
    • I use the cheap grated parmesan in the green container for this recipe.
    • For the cracker crumbs, I usually crush up Saltines or Ritz Butter crackers.
    • I prefer regular mayonnaise for this recipe as opposed to Miracle Whip.
    • There is no need to peel the zucchini.
    • Love zucchini casserole recipes? Try this main course sausage and zucchini casserole. 
    • The nutritional information below is auto-calculated and can vary depending on the products used.

Nutrition

Calories: 116kcal | Carbohydrates: 6g | Protein: 4g | Fat: 9g | Saturated Fat: 3g | Polyunsaturated Fat: 3g | Monounsaturated Fat: 2g | Trans Fat: 0.1g | Cholesterol: 40mg | Sodium: 333mg | Potassium: 161mg | Fiber: 1g | Sugar: 2g | Vitamin A: 248IU | Vitamin C: 11mg | Calcium: 91mg | Iron: 0.4mg
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If you only have room for one zucchini casserole recipe in your cook book, then this is the one. Creamy Zucchini Casserole contains eggs making the consistency similar to a soufflé.

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