Baked Zucchini Spinach Feta Casserole: A Deliciously Healthy Dish

Featured in Hearty Mains.

Discover this baked zucchini spinach feta casserole: a savory, healthy dish perfect for dinner or as a side. Easy, tasty, and vegetarian!
Casey - Recipe Author
Updated on Fri Jan 09 2026 at 08:22 AM
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Baked Zucchini Spinach Feta Casserole: A Deliciously Healthy Dish | Recipes by HomeChef

Oh my gosh, you guys, this casserole. It all started with a blurry photo on my grandma's old recipe card a faded image of what looked like a green, cheesy dream. Honestly, I didn't even know what zucchini was back then! I was, like, eight, maybe nine? The card was tucked away in a dusty box, and the smell of that box old paper, faint spice, a hint of something sweet and savory still takes me right back. I finally decided to tackle this recipe a few years ago, and let me tell you, it was a revelation! It's become my go-to comfort food, especially when I need a healthy hug in a dish. There was this one time, though, I completely forgot the feta…oops! Let's just say, it was edible, but definitely lacking that tangy kick. This recipe is super special to me because it's a delicious bridge to my grandma's kitchen, and it's surprisingly easy to whip up even on the craziest weeknights.

Why You'll Love This Recipe

  • Talk about how easy it is (or honestly, how it's not sometimes)
  • Great for picky eaters or perfect for leftovers
  • Comfort food appeal that just makes you feel hugged
  • Perfect for date nights or cozy nights in
  • Meal-prep win when you need it most
  • Has that emotional appeal that hits different

I remember the first time I made this, I totally overcooked the zucchini. It was a sad, mushy mess! But hey, you learn from your mistakes, right? Now I’m a pro at getting it just right tender-crisp, you know? It's all about that perfect balance.

Ingredients

  • zucchini: About 3 medium, because honestly, more zucchini means more deliciousness. I always grab the ones that look the freshest, the skin nice and shiny. Don't be afraid to experiment with different kinds, though!
  • Spinach: A whole bag, baby! Fresh spinach is key here. I tried using frozen once and it was… watery. Stick to fresh for the best texture and flavor. It's packed with nutrients, too!
  • Feta cheese: Oh, the feta! This is where the magic happens. I use a good quality feta, crumbled. Don't use the pre-crumbled stuff, it's just not the same. The texture and saltiness are crucial.
  • Garlic: At least 4 cloves, minced. More is always better, in my opinion! Fresh garlic is a must; it adds so much more flavor than the jarred stuff.
  • Eggs: 2 large, lightly beaten. These help bind everything together. I've tried using flax eggs for a vegan version, and while it holds together, the texture is different.
  • Olive Oil: A generous drizzle, for sautéing the garlic and zucchini. I swear by good quality olive oil it makes all the difference in taste.
  • Parmesan cheese: A sprinkle of freshly grated parmesan on top, because why not? It adds a nice salty, sharp flavor to the mix. It’s optional but highly recommended.

Instructions

Prep the Veggies:
First, wash and dice the zucchini. I usually aim for about half-inch cubes. Then, roughly chop the spinach. This step is pretty straightforward, but you’ll want to make sure everything is relatively evenly sized for even cooking. I always end up with spinach everywhere, but hey, that’s part of the charm.
Sauté the Garlic and Zucchini:
Heat the olive oil in a large skillet over medium heat. Add the minced garlic and sauté for about a minute until fragrant. Then add the zucchini and cook until it’s slightly softened, about 5-7 minutes. Don't overcook it; you want it still to have a bit of a bite.
Combine the Ingredients:
In a large bowl, combine the sautéed zucchini and garlic, spinach, feta cheese, eggs, salt, and pepper. Gently mix everything together. This is where I usually get a little messy, but honestly, it's all part of the fun! Taste and adjust seasonings as needed.
Bake the Casserole:
Pour the mixture into a greased baking dish. Sprinkle with the parmesan cheese (if using). Bake in a preheated oven at 375°F (190°C) for 25-30 minutes, or until golden brown and bubbly. Keep an eye on it towards the end to prevent burning.
Rest and Serve:
Let the casserole rest for a few minutes before serving. This allows it to set up a bit. Slice and serve warm. It's divine!
Enjoy!:
Honestly, you've earned this! This recipe is a celebration of simple ingredients and cozy vibes. I usually serve it with a side salad, but sometimes I’ll just go all in with a big scoop of vanilla ice cream. Don't judge!

There’s something so comforting about this casserole. It reminds me of lazy Sunday afternoons and family gatherings. It's a dish that brings people together, and that, to me, is priceless.

Storage Tips

Leftovers can be stored in an airtight container in the refrigerator for up to 3 days. I usually reheat it in the microwave, but you can also bake it again for a crispier top. I once tried microwaving it for too long, and the sauce separated… so don't do that, lol. It's best served warm!

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Ingredient Substitutions

You can substitute ricotta cheese for some of the feta, if you like. I’ve also experimented with different greens kale works well, but it’s a bit more bitter. For a creamier casserole, you could add a splash of cream or milk. I tried using coconut milk once and it was… interesting. A bit unusual, but not bad!

Serving Suggestions

This casserole pairs perfectly with a simple side salad or some crusty bread. A glass of crisp white wine complements it beautifully. Honestly, this dish and a rom-com? Yes please! It's also great for a potluck or a casual dinner party.

Cultural Backstory

This recipe isn’t tied to any specific culture, but it reminds me of my grandma’s simple yet flavorful approach to cooking. She always used what was fresh and in season, and that's what I love about this recipe it’s adaptable and celebrates the goodness of simple ingredients. It feels like a warm hug from my past.

This recipe is more than just a casserole; it's a taste of home, a reminder of simpler times, and a whole lot of deliciousness. I hope you enjoy it as much as I do! Let me know how your version turns out!

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Frequently Asked Questions

→ Can I make this ahead of time?

Absolutely! You can assemble the casserole a day ahead and bake it when you’re ready. Just keep it covered in the fridge.

→ What if I don't have feta cheese?

You could try goat cheese or even a salty crumbled cheese like halloumi as a substitute. It might change the flavor profile a bit, but it’ll still be tasty!

→ How do I know when it’s done?

The casserole is done when it’s golden brown on top and bubbly. You can also check the internal temperature with a thermometer; it should reach 165°F (74°C).

→ How long does it last in the fridge?

Leftovers will last for up to 3 days in the refrigerator. Just make sure to store it in an airtight container.

→ Can I add other vegetables?

Yes! Feel free to add other vegetables like bell peppers, mushrooms, or onions. Get creative and have fun with it!

Baked Zucchini Spinach Feta Casserole: A Deliciously Healthy Dish

Discover this baked zucchini spinach feta casserole: a savory, healthy dish perfect for dinner or as a side. Easy, tasty, and vegetarian!

4.4 out of 5
(66 reviews)
Prep Time
20 Minutes
Cook Time
30 Minutes
Total Time
50 Minutes
By: Casey

Category: Hearty Mains

Difficulty: Beginner

Cuisine: Mediterranean

Yield: 6 Servings

Dietary: Vegetarian

Published: Wed Jul 09 2025 at 02:42 AM

Last Updated: Fri Jan 09 2026 at 08:22 AM

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Ingredients

→ Main Ingredients

01 3 medium zucchini, diced
02 1 (10 ounce) package fresh spinach, chopped
03 8 ounces feta cheese, crumbled

→ Seasonings & Spices

04 4 cloves garlic, minced
05 Salt and pepper to taste

→ Garnish & Toppings

06 1/4 cup grated Parmesan cheese

→ Optional Extras

07 Pinch of red pepper flakes
08 Sun-dried tomatoes

Instructions

Step 01

Wash and dice the zucchini into about half-inch cubes. Roughly chop the spinach.

Step 02

Heat olive oil in a skillet over medium heat. Add minced garlic and sauté for 1 minute. Add zucchini and cook until slightly softened, about 5-7 minutes.

Step 03

In a large bowl, combine sautéed zucchini and garlic, spinach, feta, eggs, salt, and pepper. Mix gently.

Step 04

Pour mixture into a greased baking dish. Sprinkle with Parmesan cheese (if using). Bake at 375°F (190°C) for 25-30 minutes, or until golden brown and bubbly.

Step 05

Let the casserole rest for a few minutes before slicing and serving warm.

Step 06

Serve and savor this delicious and healthy casserole!

Notes

  1. Don’t overcook the zucchini! It should be tender-crisp, not mushy.
  2. Leftovers can be stored in an airtight container in the refrigerator for up to 3 days.
  3. You can substitute ricotta cheese for some of the feta.
  4. Serve with a side salad or crusty bread.

Tools You'll Need

  • Large skillet
  • large bowl
  • baking dish

Allergy Information

Please check ingredients for potential allergens and consult a health professional if in doubt.
  • Dairy
  • Eggs

Nutrition Facts (Per Serving)

It is important to consider this information as approximate and not to use it as definitive health advice.
  • Calories: 250 calories per serving (approximate)
  • Total Fat: 15g
  • Total Carbohydrate: 10g
  • Protein: 10g

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