Cheesy Zucchini Casserole Recipe

Dreamy Cheesy Zucchini Casserole Recipe for Cozy Dinners

Whipping up a delectable cheesy zucchini casserole brings comfort and joy to any dinner table.

Seasonal vegetables dance with melted cheese in this mouthwatering dish.

Crisp zucchini slices nestle between layers of creamy goodness, creating a satisfying meal that feels like a warm hug.

Fresh ingredients combine to make something magical on your plate.

Summer’s bounty shines through in every single bite of this hearty casserole.

Simple techniques transform ordinary vegetables into an extraordinary experience.

You can make this recipe shine with just a few easy steps and some culinary passion.

Let’s dive into a culinary adventure that will have everyone asking for seconds!

FAQs

  • Can I use frozen zucchini for this recipe?

No, frozen zucchini will release too much water and make the casserole soggy. Always use fresh zucchini and steam or boil it briefly to remove excess moisture.

  • Is it possible to make this casserole ahead of time?

Yes, you can prepare the casserole up to the point of baking, cover it, and refrigerate for up to 24 hours. When ready to serve, remove from the refrigerator and bake as directed.

  • How can I make this recipe more protein-rich?

Add cooked, crumbled bacon or diced cooked chicken to the mixture before baking. These protein additions will enhance the flavor and nutritional value of the casserole.

  • What can I substitute for sour cream if I don't have it?

Greek yogurt works perfectly as a substitute for sour cream. It provides similar creaminess and tanginess while keeping the casserole’s texture consistent.

Zucchini Casserole That’s Surprisingly Cheesy

Zucchini Casserole That’s Surprisingly Cheesy
  • Quick Weeknight Winner: Whips up in under 30 minutes, making it perfect for busy families craving a delicious vegetable side dish without complicated prep.
  • Family-Friendly Flavor Boost: Transforms zucchini into a creamy, cheesy casserole that even picky eaters will love, hiding healthy vegetables under a crispy, buttery breadcrumb topping.
  • Versatile Crowd-Pleaser: Easily adaptable for potlucks, holiday gatherings, or casual dinners, this recipe works as a hearty side dish that complements multiple main courses without overwhelming other flavors.
  • Budget-Friendly Comfort Food: Uses affordable, accessible ingredients like zucchini, cheese, and breadcrumbs, creating a satisfying dish that doesn't break the bank while delivering maximum taste and nutrition.

Cheesy Zucchini Casserole Cooking Base

Main Vegetables and Cheese:
  • Zucchini: Fresh summer squash that provides the base of the casserole, best when young and tender.
  • Cheddar Cheese, Parmesan Cheese: Sharp and tangy cheeses that create a rich, creamy texture and add depth of flavor.
Binding and Moisture Ingredients:
  • Sour Cream: Adds creamy richness and helps bind the casserole together, creating a smooth texture.
  • Onion: Provides a subtle sweet and savory base flavor, enhancing the overall taste of the dish.
  • Garlic: Offers a sharp, aromatic flavor that complements the zucchini and cheese.
Topping and Seasoning:
  • Breadcrumbs: Creates a crispy, golden-brown topping that adds texture and crunch.
  • Butter: Helps the breadcrumbs brown and adds a rich, smooth flavor.
  • Salt, Black Pepper: Essential seasonings that enhance and balance the overall taste.
  • Dried Thyme: Optional herb that adds a subtle earthy and slightly minty flavor to the casserole.

Cheesy Zucchini Casserole Cooking Flow

Cheesy Zucchini Casserole Cooking Flow

Step 1: Warm Up The Oven

Fire up your oven to 375°F.

Grab a 9×9-inch baking dish and coat it with a light layer of cooking spray or butter to prevent sticking.

Step 2: Prepare Zucchini Slices

Gently steam or boil zucchini slices for 3-5 minutes until they’re just beginning to soften.

Carefully drain the water and use a paper towel to remove excess moisture.

Step 3: Create Creamy Cheese Mixture

In a spacious mixing bowl, combine:
  • Sour cream
  • Shredded cheddar cheese
  • Grated Parmesan cheese
  • Finely chopped onion
  • Minced garlic
  • Salt
  • Black pepper
  • Dried thyme

Tenderly fold the zucchini slices into this rich, creamy mixture.

Step 4: Fill The Baking Dish

Pour the zucchini and cheese blend into your prepared baking dish.

Spread it evenly to ensure every bite is deliciously consistent.

Step 5: Add Crunchy Topping

Mix breadcrumbs with melted butter in a separate small bowl.

Sprinkle this golden, crispy topping across the casserole surface.

Step 6: Bake To Perfection

Slide the dish into the preheated oven.

Bake for 20-25 minutes until the top turns a beautiful golden brown and the edges start bubbling.

Step 7: Rest And Serve

Allow the casserole to rest for 5 minutes after removing from the oven.

This helps the flavors meld and makes serving easier.

Enjoy your cheesy zucchini masterpiece!

Tips for Cheesy Zucchini Casserole That Doesn’t Get Watery

  • Pat zucchini thoroughly with paper towels to remove excess water, preventing a soggy casserole.
  • Experiment with different cheese combinations like gruyère or monterey jack for unique flavor profiles.
  • Add diced bell peppers or spinach to increase vegetable content and enhance nutritional value.
  • Replace breadcrumbs with crushed gluten-free crackers or almond meal for a celiac-friendly version.
  • Prepare the casserole up to 24 hours in advance and refrigerate, then bake when ready to serve for convenient meal planning.

Keep Zucchini Casserole Cheesy And Warm Later

  • Store leftover casserole in an airtight container for up to 3-4 days in the refrigerator, keeping flavors fresh and ingredients intact.
  • Wrap tightly in plastic wrap and aluminum foil, then freeze for maximum 2 months, preserving the casserole's delicious texture.
  • Warm at 350°F for 15-20 minutes, covering with foil to prevent drying out and maintain moisture.
  • Heat individual portions for 1-2 minutes, stirring halfway through to ensure even warming and prevent cold spots.

Yummy Combos for Cheesy Zucchini Casserole

  • Pair with Crisp White Wine: Select a light, refreshing Sauvignon Blanc or Pinot Grigio that complements the creamy zucchini casserole's rich cheese flavors and cuts through its richness.
  • Serve with Herb-Roasted Chicken: Create a perfectly balanced meal by adding a simple roasted chicken seasoned with rosemary and thyme, which echoes the herb notes in the casserole and provides lean protein.
  • Match with Fresh Garden Salad: Toss together a light mixed green salad with a tangy vinaigrette to provide a crisp, acidic contrast to the creamy, cheesy casserole and add freshness to the plate.
  • Accompany with Crusty Bread: Include a slice of rustic sourdough or French bread to help soak up the delicious cheesy sauce and provide a textural crunch alongside the soft casserole.

Zucchini Casserole with Cheesy Layer Combinations

  • Vegan Veggie Bake: Replace zucchini with cauliflower or eggplant. Swap sour cream with cashew cream, use nutritional yeast instead of cheese, and substitute breadcrumbs with crushed gluten-free crackers.
  • Low-Carb Zucchini Casserole: Eliminate breadcrumbs and use almond flour topping. Select full-fat cheese and replace onion with green onions for fewer carbohydrates.
  • Mediterranean Herb Casserole: Add chopped sundried tomatoes, fresh basil, and swap thyme with oregano. Include crumbled feta cheese for extra Mediterranean flavor.
  • Protein-Packed Version: Incorporate cooked ground turkey or diced chicken into the mixture. Increase cheese quantity and sprinkle extra protein-rich nuts on top for added nutrition.
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Cheesy Zucchini Casserole Recipe

Cheesy Zucchini Casserole Recipe


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4.6 from 32 reviews

  • Total Time: 40 minutes
  • Yield: 6 1x

Description

Zucchini cheese casserole brings garden-fresh flavors to your dinner table, blending creamy textures with savory goodness. Comfort meets nutrition in this simple yet satisfying dish you’ll crave again and again.


Ingredients

Scale

Main Ingredients:

  • 4 cups (960 ml) sliced zucchini
  • 1 cup (240 ml) shredded cheddar cheese
  • 1/2 cup (120 ml) grated Parmesan cheese
  • 1 cup (240 ml) breadcrumbs

Dairy and Binding Ingredients:

  • 1/2 cup (120 ml) sour cream
  • 2 tablespoons (30 ml) butter, melted

Seasoning and Aromatics:

  • 1/4 cup (60 ml) diced onion
  • 1 garlic clove, minced
  • 1 teaspoon (5 ml) salt
  • 1/2 teaspoon (2.5 ml) black pepper
  • 1/2 teaspoon (2.5 ml) dried thyme (optional)

Instructions

  1. Prepare an oven-ready culinary canvas by heating to 375°F and coating a 9×9-inch baking vessel with a protective layer of grease.
  2. Transform zucchini into tender morsels through gentle steaming or boiling for 3-5 minutes, ensuring optimal texture by thoroughly draining and patting dry.
  3. Craft a luxurious flavor foundation by whisking together tangy sour cream, sharp cheddar, nutty Parmesan, aromatic onion, pungent garlic, fragrant thyme, and seasoning elements to create a harmonious mixture.
  4. Delicately fold the prepared zucchini slices into the creamy cheese mixture, ensuring each slice is generously coated with the vibrant blend of ingredients.
  5. Seamlessly transfer the zucchini-cheese medley into the prepared baking dish, spreading the mixture to create an even, appetizing layer.
  6. Elevate the casserole’s texture by creating a crisp golden topping: combine breadcrumbs with melted butter and sprinkle generously across the surface.
  7. Orchestrate a culinary transformation by baking in the preheated oven for 20-25 minutes, watching for a bubbling, golden-brown crown that signals perfect doneness.
  8. Allow the casserole a brief moment of rest for 5 minutes, enabling flavors to settle and ensuring a pristine serving experience.

Notes

  • Remove excess moisture from zucchini by patting it thoroughly with paper towels to prevent a watery casserole and ensure a creamy, rich texture.
  • Substitute low-fat sour cream and reduced-fat cheeses for a lighter version without compromising flavor and keeping the dish diet-friendly.
  • Experiment with additional herbs like basil or oregano to customize the flavor profile and add depth to the casserole’s taste.
  • Toast breadcrumbs separately before sprinkling to enhance their crunchiness and create a more golden, crispy topping that adds texture contrast.
  • Prep Time: 15 minutes
  • Cook Time: 25 minutes
  • Category: Dinner, Lunch
  • Method: Baking
  • Cuisine: American

Nutrition

  • Serving Size: 6
  • Calories: 245
  • Sugar: 3g
  • Sodium: 570mg
  • Fat: 14g
  • Saturated Fat: 8g
  • Unsaturated Fat: 4g
  • Trans Fat: 0g
  • Carbohydrates: 21g
  • Fiber: 2g
  • Protein: 10g
  • Cholesterol: 30mg
James Walker

James Walker

Lead Recipe Developer & Culinary Educator

Expertise

Southern Cuisine & Farm-to-Table Cooking, Recipe Development & Testing, Culinary Education & Instruction​

Education

School: Auguste Escoffier School of Culinary Arts

Program: Diploma in Culinary Arts and Operations

Focus: Comprehensive training in classical and modern culinary techniques, kitchen operations, and farm-to-table practices. ​


James didn’t learn cooking from a TV show, he learned it from busy kitchens, family gatherings, and long afternoons spent testing recipes the hard way.
After training at the Auguste Escoffier School of Culinary Arts, he brought his love for real, down-to-earth food to every dish he makes.
At Dining At Home, James loves building recipes that feel familiar but still have something special, like adding a twist to a classic or making a slow Sunday dinner feel brand new.
When he’s not in the kitchen, you’ll probably find him swapping garden tips at the farmers’ market or teaching his daughter how to flip pancakes without a mess (almost).

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