Fresh from the garden and straight to your table, this Garden Zucchini Casserole is a delicious way to enjoy summer’s bounty. Creamy, cheesy, and baked to golden perfection, it’s the perfect side dish or even a light main course. This is comfort food with a fresh twist, and it will have everyone asking for seconds.

Why You’ll Love Garden Zucchini Casserole

Name: Garden Zucchini Casserole
Prep time: 15 min
Cook time: 30 min
Total time: 45 min
Cuisine: American
Ingredients: 4 cups zucchini, sliced; 1 onion, diced; 1 cup shredded cheddar cheese; 1/2 cup sour cream; 1/4 cup mayonnaise; 1 cup breadcrumbs; 2 tbsp butter, melted; 1 tsp garlic powder; Salt and black pepper to taste

Versatile: Works as a side dish or vegetarian main.
Budget-Friendly: Uses seasonal zucchini and simple pantry staples.
Quick and Easy: Prep in minutes, bake, and serve.
Customizable: Add other veggies, different cheeses, or spices to mix it up.
Crowd-Pleasing: Cheesy, creamy, and oh-so-satisfying.

Ingredients in Garden Zucchini Casserole

Zucchini

Tender slices that form the base of the dish.

Onion

Adds sweetness and depth to the flavor.

Cheese

Cheddar or mozzarella creates a gooey, melty topping.

Eggs

Bind everything together and give the casserole structure.

Sour Cream

Makes it creamy and rich.

Bread Crumbs

Create a crispy topping.

Seasonings

Salt, pepper, and Italian herbs bring it all to life.

(Note: full ingredients with measurements are in the recipe card.)

Instructions

Preheat Your Equipment

Set oven to 375°F and grease a casserole dish.

Combine Ingredients

Mix zucchini, onion, cheese, eggs, sour cream, and seasonings in a large bowl.

Prepare Your Cooking Vessel

Pour mixture into prepared dish.

Assemble the Dish

Top with bread crumbs and an extra sprinkle of cheese.

Cook to Perfection

Bake for 30–35 minutes until bubbly and golden.

Finishing Touches

Let cool slightly before serving—it holds together better.

Serve and Enjoy

Perfect alongside grilled meats or as a vegetarian entrée!

Nutrition Facts

Servings: 6
Calories per serving: Approximately 210

Preparation Time

Prep Time: 15 minutes
Cook Time: 35 minutes
Total Time: 50 minutes

How to Serve Garden Zucchini Casserole

Serve hot with a crisp salad or some crusty bread. It’s also delicious as leftovers, reheated for lunch the next day.

Additional Tips

Salt zucchini and drain excess water before baking to prevent sogginess.
Add a pinch of nutmeg for a subtle flavor boost.
Double the recipe for gatherings—it disappears fast!

FAQ’s

1. Can I use yellow squash? Yes, it works perfectly with zucchini.
2. Can I make it low-carb? It already is! Just skip the breadcrumbs.
3. Can I prepare it ahead? Yes, assemble and refrigerate, then bake when ready.
4. Can I use Greek yogurt instead of sour cream? Yes, for a lighter option.
5. Can I freeze it? It’s best enjoyed fresh, but you can freeze portions.
6. Can I add meat? Cooked sausage or bacon makes it heartier.
7. What cheese works best? Cheddar, mozzarella, or a mix.
8. Can I add more veggies? Absolutely—try bell peppers or mushrooms.
9. How do I prevent it from being watery? Salt zucchini and drain well.
10. Is it kid-friendly? Yes! The cheesy flavor is irresistible.

Conclusion

Garden Zucchini Casserole is the perfect way to showcase fresh zucchini in a dish that’s creamy, cheesy, and comforting. It’s easy, delicious, and destined to become a family favorite.

Garden Zucchini Casserole

Print Recipe

Garden Zucchini Casserole is a cheesy, comforting dish that highlights fresh zucchini baked with onions, breadcrumbs, and a creamy cheese mixture. It’s the perfect side dish for any family meal or holiday gathering.

Author: Ava
Prep Time: 15 minutes
Cook Time: 30 minutes
Total Time: 45 minutes
Yield: 6 servings 1x
Category: Side Dish
Method: Baking
Cuisine: American
Diet: Vegetarian

Ingredients

Scale

4 cups zucchini, sliced
1 onion, diced
1 cup shredded cheddar cheese
1/2 cup sour cream
1/4 cup mayonnaise
1 cup breadcrumbs
2 tbsp butter, melted
1 tsp garlic powder
Salt and black pepper to taste

Instructions

Preheat oven to 350°F (175°C). Grease a 9×13-inch baking dish.
Boil zucchini slices for 2-3 minutes, then drain well.
In a bowl, mix sour cream, mayonnaise, garlic powder, salt, and pepper.
Stir in zucchini, onions, and 3/4 cup cheddar cheese.
Transfer mixture to the prepared baking dish.
Combine breadcrumbs with melted butter and sprinkle over the top along with remaining cheese.
Bake uncovered for 25-30 minutes or until golden and bubbly.