Side Dish · Vegetable · American

Zucchini Casserole With Three Cheese Crust

This comforting zucchini casserole combines garden-fresh squash with a rich, savory custard and a bubbly three-cheese topping.

4.6(465 reviews)
·By Ethan Brooks·
Zucchini Casserole With Three Cheese Crust — American Side Dish served and photographed from above
Prep
15 min
Cook
35 min
Difficulty
Easy
Serves
6

Preparation

Get these tasks done before you start cooking.

Prep the Squash

  1. 1

    Sweat the Zucchini

    Place zucchini rounds in a colander and sprinkle with a pinch of salt. Let sit for 10 minutes, then pat thoroughly dry with paper towels.

    Tip: Removing excess moisture prevents the casserole from becoming watery during baking.

How to Make Zucchini Casserole With Three Cheese Crust

Total time: 50 min · Yields 6 servings

  1. 1

    Sauté Aromatics

    Preheat your oven to 190°C (375°F). In a large skillet over medium heat, add olive oil and sauté the diced onions until translucent, about 5 minutes. Add the minced garlic and cook for 1 additional minute until fragrant.

  2. 2

    Create the Cream Mixture

    In a medium bowl, whisk together the heavy cream, beaten egg, smoked paprika, salt, pepper, and half of the parmesan cheese.

  3. 3

    Combine Ingredients

    In a large mixing bowl, toss the dried zucchini rounds with the sautéed onion and garlic. Pour the cream mixture over the vegetables and stir gently to coat every slice.

  4. 4

    Assemble the Casserole

    Grease a 2-quart baking dish. Transfer the zucchini mixture into the dish, spreading it into an even layer. Top evenly with the shredded cheddar and mozzarella.

  5. 5

    Add the Crust and Bake

    Mix the Panko breadcrumbs with the remaining parmesan and sprinkle over the top. Bake for 30 to 35 minutes until the zucchini is tender and the cheese crust is bubbling and golden brown.

Chef's Tips

  • Always pat the zucchini dry after slicing to ensure the sauce stays thick and creamy.
  • For a lower carb version, omit the Panko breadcrumbs and use extra parmesan for the crust.
  • If the top browns too quickly, cover loosely with foil for the last 10 minutes of baking.

What to Serve with Zucchini Casserole With Three Cheese Crust

The garlic butter sauce is the star — pick sides that soak it up or balance the richness.

  • Serve alongside grilled chicken or steak.
  • Pair with a crisp green salad for a light vegetarian lunch.
  • Excellent as a holiday side dish next to roasted turkey.

Recipe Variations

Once you've mastered the base recipe, try these popular twists.

Variation

Add cooked crumbled bacon to the cream mixture for a smoky flavor.

Variation

Swap half the zucchini for yellow summer squash for a colorful contrast.

Variation

Mix in a teaspoon of fresh thyme or oregano for an earthy herbal note.

Storage & Reheating

Store leftovers in an airtight container in the refrigerator for up to 3 days. Reheat in the oven at 175°C to maintain the crust texture.

Further reading

Frequently asked questions

Why is my zucchini casserole watery?

Zucchini has a high water content. To avoid a watery casserole, salt the sliced zucchini and let it sit for 10 minutes, then pat it very dry with paper towels before mixing with the other ingredients.

Can I make this zucchini casserole ahead of time?

Yes, you can assemble the casserole up to 4 hours in advance. Store it covered in the fridge, but add the breadcrumb topping just before you put it in the oven to keep it crispy.

Do I need to peel the zucchini first?

No, there is no need to peel the zucchini. The skin provides structure and nutrients, and it becomes very tender during the baking process.

What is the best cheese for a cheesy zucchini bake?

A blend of sharp cheddar for flavor, mozzarella for meltability, and parmesan for a salty, crispy crust provides the best results.

Can I freeze zucchini casserole?

Freezing is not recommended as the zucchini will lose its texture and become mushy once thawed and reheated.

You might also love

Browse all recipes

Explore more from TastyFood

Looking for something different? Browse by category.