Cheesy Zucchini Casserole Recipe

If you’re searching for a dish that’s cozy, crowd-pleasing, and celebrates summer’s harvest, this Cheesy Zucchini Casserole is pure comfort in a baking dish! Tender grated zucchini is nestled in a creamy, savory, cheesy base, then baked until golden and bubbling—every bite is melt-in-your-mouth magic. Best of all, it’s fast enough for a weeknight but special enough for a holiday spread.

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Ingredients You’ll Need

Just a handful of honest ingredients transforms humble zucchini into a bubbling, golden comfort food classic. Every component in this Cheesy Zucchini Casserole plays a starring role, lending flavor, richness, and irresistible texture to every forkful.

• Zucchini (2 ½ – 3 cups, grated): Grated fresh zucchini gives the casserole its moist, tender texture—squeeze it dry for best results!
• Olive Oil (1 teaspoon): Adds a touch of richness and helps soften the shallot and garlic.
• Shallot (1 medium, finely chopped): Lends a subtle sweetness and depth without overpowering the delicate zucchini.
• Garlic (3 cloves, minced): Infuses the whole dish with warm, fragrant flavor.
• Eggs (2): Help bind all the veggies and cheese together for a creamy, sliceable casserole.
• Salt, Pepper, Paprika & Nutmeg: The perfect combo to enhance, not mask, the natural flavors—don’t skip that pinch of nutmeg!
• Sharp Cheddar Cheese (1 cup, grated): For maximum tang, gooeyness, and that classic cheesy crown.
• Parmesan (2 tablespoons, freshly grated): Sprinkled on top, parmesan creates a crisp, savory golden finish.
• Fresh Parsley (optional): Adds a bright pop of color and freshness to the finished casserole.

Variations

This Cheesy Zucchini Casserole is made to be a “use what you have” kind of dish! Don’t hesitate to experiment with your favorite cheeses, add a little protein, or adjust the spices to make it uniquely yours.

• Swap the Cheese: Mix in Monterey Jack, Gruyère, fontina, or even a pinch of blue cheese for a new cheesy twist.
• Add Crunch: Sprinkle panko, buttery breadcrumbs, or crushed crackers over the top before baking for an irresistible golden crust.
• Boost the Protein: Stir in cooked bacon bits, crumbled sausage, or shredded rotisserie chicken to make this a hearty main dish.
• Make It Meatless & Gluten-Free: This casserole is naturally vegetarian and gluten-free—just double-check your cheeses and enjoy!
• Spice It Up: A pinch of cayenne, smoked paprika, or chopped jalapeños can add a fiery kick if you love heat.

How to Make Cheesy Zucchini Casserole

Step 1: Prep and Preheat

Start by preheating your oven to 355°F (180°C) so it’s ready to go as soon as your casserole is assembled. Take a moment to grease your favorite baking dish—the anticipation will start to build!

Step 2: Grate and Drain the Zucchini

Grate the zucchini using a box grater, leaving the skin on for extra color and nutrients (or peel some if you prefer a softer look). Sprinkle with a pinch of salt, let it rest for 5 minutes, and then give it a mighty squeeze in a clean kitchen towel or cheesecloth to remove as much liquid as possible—don’t skip this part for a creamy, not watery, casserole!

Step 3: Sauté the Aromatics

Heat the olive oil in a skillet over medium-high, swirl to coat, then add shallots and cook, stirring often, until soft and translucent (about 2-3 minutes). Add the minced garlic and cook until fragrant—your kitchen will already start to smell incredible!

Step 4: Briefly Cook the Zucchini

Add the well-drained zucchini to the skillet, mix, and cook on medium for just 1–2 minutes. This extra step melds flavors and helps any leftover moisture evaporate. Pour the mixture into your prepared baking dish.

Step 5: Whisk and Combine

In a small bowl, beat together the eggs, paprika, nutmeg, salt, and pepper. Pour the egg mixture and half the shredded cheddar into the zucchini, then fold gently to combine everything. Smooth the mixture in your baking dish for even baking.

Step 6: Top & Bake

Scatter the rest of the cheddar and all the parmesan over the top, then bake for 27–30 minutes, or until melted and golden. For an extra crisp finish, pop the casserole under the broiler for 1–2 minutes—but watch closely!

Step 7: Garnish and Serve

Let your Cheesy Zucchini Casserole cool for a few minutes (if you can resist), then finish with a sprinkle of fresh chopped parsley. Dive in while it’s warm and gooey—the only thing missing is your favorite side!

How to Serve Cheesy Zucchini Casserole

Garnishes

Just before serving, a sprinkle of chopped fresh parsley (or even basil or chives) adds color and a burst of freshness that lifts the creamy richness of Cheesy Zucchini Casserole. A light dusting of extra parmesan or a few red pepper flakes can also be a tasty finishing flourish!

Side Dishes

This casserole makes the perfect centerpiece for brunch, dinner, or a holiday buffet. Pair it with roasted chicken, grilled steak, or a simple salad for a complete meal. It’s also delightful alongside fresh tomatoes, garlic bread, or a bowl of tomato soup.

Creative Ways to Present

For a dinner party, cut Cheesy Zucchini Casserole into squares and serve as an hors d’oeuvre on a tray with toothpicks. Or, bake individual portions in small ramekins for an elegant twist. Leftovers? Tuck a slice into a sandwich or wrap for tomorrow’s lunch!

Make Ahead and Storage

Storing Leftovers

Leftover Cheesy Zucchini Casserole will keep beautifully in a covered container in the refrigerator for up to 3 days. It’s just as delicious (maybe even more savory) the next day—don’t be surprised if you peek in the fridge for a midnight snack!

Freezing

You can freeze any extra portions by wrapping them tightly and placing in a freezer-safe container. For best flavor and texture, enjoy within 1 month—let thaw overnight in the fridge before reheating.

Reheating

Pop slices into a 350°F oven until hot and bubbly (about 15 minutes), or reheat single portions in the microwave for 1–2 minutes. For a re-crisped top, finish under the broiler briefly after reheating.

FAQs

Final Thoughts

If you try just one zucchini recipe this season, let it be this Cheesy Zucchini Casserole. It’s easy, nourishing, endlessly adaptable, and a guaranteed family favorite—just the kind of dish I always crave. I hope this recipe brings some real comfort (and cheesy joy!) to your table. Happy baking!

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