Baked Zucchini and Cheese Casserole for Busy Nights

When life gives you zucchini (and let’s be real, sometimes the garden over-delivers), don’t panic—make this Baked Zucchini and Cheese Casserole. It’s warm, cheesy, and irresistibly golden on top, with layers of zucchini, squash, fresh basil, and gooey mozzarella. Whether you’re bringing a dish to Friendsgiving, hosting Sunday dinner, or just looking for something different to do with all that squash, this easy casserole is about to become your go-to.

The best part? It’s a veggie-forward dish that feels indulgent but is secretly on the healthier side. With no heavy cream or complicated prep, you can whip this up on a weeknight or make it ahead for gatherings. Think of it as comfort food with a summer-fresh twist.

Table of Contents

Why You’ll Love This Cheesy Zucchini Bake

• Cheesy Goodness: Gooey mozzarella + nutty Parmesan = flavor heaven.
• Veggie-Packed: A great way to use up zucchini and squash without it feeling like “rabbit food.”
• Easy Prep: Slice, layer, bake—done. No complicated sauces or fancy techniques.
• Crowd-Pleaser: Perfect for holidays, potlucks, or a Friendsgiving appetizer spread.
• Customizable: Works as a vegetarian main dish or a hearty side to grilled chicken, beef, or fish.

Ingredients

Here’s what you’ll need for this zucchini casserole recipe:

• 2 medium zucchini, sliced (rounds or half-moons)
• 2 medium yellow squash, sliced (rounds or half-moons)
• 4 tbsp fresh basil, chopped (use more if you love basil)
• 2 tbsp green onion, thinly sliced
• ½ tsp dried thyme
• ¾ tsp garlic powder
• 1 cup grated mozzarella cheese (use part-skim for lighter, whole milk for extra melty)
• ½ cup grated Parmesan cheese (plus extra for topping, optional)
• Salt and fresh ground black pepper, to taste

Step-by-Step Instructions

1. Prep the oven and veggies: Preheat oven to 375°F. Slice zucchini and yellow squash into rounds or half-moons.
2. Layer the vegetables: Lightly grease a baking dish. Layer zucchini and squash evenly, overlapping slightly. Sprinkle with salt, pepper, basil, green onion, thyme, and garlic powder.
3. Add the cheese: Sprinkle a layer of mozzarella and Parmesan over the vegetables. Repeat layering if needed until all ingredients are used. Finish with a generous layer of mozzarella and a little Parmesan on top.
4. Bake to perfection: Cover with foil and bake for 20 minutes. Remove foil and bake for another 15–20 minutes, until bubbly and golden.
5. Serve warm: Garnish with fresh basil or extra Parmesan before serving.

Pro tip: If you want that gorgeous browned top, broil for 2–3 minutes at the end (just keep an eye on it!).

Equipment You’ll Need

• Sharp knife and cutting board
• Mixing bowls
• 9×13 baking dish (or similar)
• Foil
• Grater for cheese

Tips & Variations

• Make it a main dish: Add cooked ground beef or turkey between the layers for a heartier casserole.
• Low-carb option: Swap half the mozzarella for shredded cheddar and reduce the Parmesan for a keto-friendly twist.
• Herb swap: Don’t love basil? Use fresh parsley, oregano, or dill instead.
• Zucchini casserole recipes healthy: Use reduced-fat cheeses and skip the extra Parmesan topping.
• Friendsgiving appetizer: Cut into squares and serve warm as a shareable starter.

Serving Suggestions

This casserole is versatile and works as both a main dish and a side. Try it with:

• A crisp green salad with balsamic vinaigrette
• Garlic bread or crusty rolls (because extra carbs never hurt)
• A main protein like Easy Baked Lemon Chicken or Healthy Chicken Zucchini Pasta

Nutrition Facts (per serving, serves 6)

• Calories: ~180
• Protein: 10g
• Carbs: 7g
• Fat: 12g
• Fiber: 2g

(Values are approximate and vary based on cheese and serving size.)

Conclusion

This Baked Zucchini and Cheese Casserole is proof that veggies can hold their own in the comfort food department. Cheesy, cozy, and brimming with flavor, it’s one of those easy zucchini casserole recipes you’ll make again and again—whether you’re feeding family, impressing friends, or just trying to get rid of that mountain of squash on your counter.

Save this recipe, pin it for later, and check out more zucchini casserole recipes on the blog.

FAQ

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• Cheesy Ground Beef And Potatoes
• Cottage Cheese Fudge
• Cottage Cheese Egg Bites

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