Mouthwatering Veggie Casserole

As seen on: Delicious Main Course Recipes

Homemade zucchini dish mixing garden veggies with Romano and Parmesan cheese. Zero pre-made mixes needed.
emilyscooks.com
Shared By Emily
Last revised on Sun, 11 May 2025 22:48:13 GMT
A cut piece of zucchini casserole sits on a plate, showing its golden top and soft middle. Save this
A cut piece of zucchini casserole sits on a plate, showing its golden top and soft middle. | emilyscooks.com

Whenever zucchini overflows from my garden, this gooey cheese-loaded dish is my top choice to use them up. Something truly special happens when you combine Pecorino Romano with Parmesan - it takes me straight back to those wonderful Sunday meals at grandma's place. I've made this my go-to creation for everything from laid-back brunches to fancy dinner gatherings.

A Dish That Touches My Soul

This dish began in my mother's cooking space where she'd whip it up for family meetups. I've played with her original method a bit and thrown in extra cheese over time. These days, my version gets asked for more than anything else when we all get together.

Our Family's Mystery Addition

The wonder of Pecorino Romano in this meal can't be overstated. Mom stumbled on this trick long ago and it totally changes how everything tastes. That tangy salt kick makes everyone grab another helping and wonder what makes it taste so darn good.

Pure Items Pure Taste

Don't bother with those ready-made packages for this one. Trust me, spending those extra couple minutes to measure out your flour and baking powder pays off big time. You'll get cleaner flavors and just-right texture, and you won't ever want those premade mixes again.

The Flawless Cut

Cutting those zucchini pieces just the right way really matters. I grab my mandoline to get exactly eighth-inch rounds. A good knife works fine too if you're not in a rush. Nobody tells you the most important part though - dry those slices really well. That's my sure-fire way to keep your dish from turning mushy.

A slice of golden-brown zucchini bake topped with herbs, served on a white plate next to a red napkin. Save this
A slice of golden-brown zucchini bake topped with herbs, served on a white plate next to a red napkin. | emilyscooks.com

What Your Cupboard Needs

What's awesome about this dish is how it turns basic stuff into something amazing. Fresh zucchini, garlic and onions pack the flavor while two different cheeses make it rich. A bit of olive oil and some dried basil from my garden pull everything together just right.

Putting It Together

I love throwing everything into one big bowl. Make sure you separate any zucchini chunks that stick so each mouthful has just the right mix of veggies and cheesy goodness. The mix might seem too thick, but don't worry - it'll bake up just fine.

See It Come To Life

Your house will fill with wonderful smells as this cooks. Watch for the top turning gold and those edges getting crispy. That tells you it's done just right. I always sneak a bit of that crunchy edge while it's cooling off - can't help myself.

My Top Kitchen Tricks

After making this countless times, I've picked up some handy tips. Weighing your zucchini gets you perfect results every time. If you're using garden-grown ones, go for the medium-sized ones since the big ones can taste bitter. And don't rush through drying those slices - it's totally worth those extra minutes.

Great Food Matches

This zucchini dish goes with almost anything. We eat it with some grilled chicken for dinner or a fresh salad at lunch. During holiday times, it sits right by the turkey on our table. The extras taste amazing with eggs the next morning too.

A baked dish featuring layers of zucchini topped with melted cheese in a glass baking dish. Save this
A baked dish featuring layers of zucchini topped with melted cheese in a glass baking dish. | emilyscooks.com

For Every Meal Occasion

I've brought this to fancy morning meals, neighborhood potlucks, and just about everything else. It always seems to fit right in and there's never anything left. What's great is you can make it beforehand, which makes hosting so much easier.

Room For New Ideas

I sometimes mix in bright bell peppers or cooked mushrooms when I want something different. My sister thinks using Fontina instead of Romano works better. This dish lets you play around - go ahead and try your own spin on it.

Tastier Tomorrow

Want to know something cool? This dish actually tastes even better the next day. All those flavors blend together overnight. I often make mine a day early just for that reason. Just warm it up again to get that crispy top back.

Tasty And Healthy Too

With this meal, I can get extra veggies onto everyone's plates without any fuss. The cheese makes it so good nobody can say no, while all that zucchini adds good stuff your body needs. It hits that sweet spot between yummy and good for you.

Drinks To Match

I enjoy this with a nice cool glass of white wine. Try a light Pinot Grigio or Sauvignon Blanc - they work really well. Their zingy taste cuts through the rich cheese so every bite feels just right.

A slice of baked zucchini casserole sits on a decorative white plate, garnished with herbs, alongside a fork. Save this
A slice of baked zucchini casserole sits on a decorative white plate, garnished with herbs, alongside a fork. | emilyscooks.com

Everybody's Top Pick

Even folks who say they don't care for zucchini end up crazy about this dish. That cheesy outside and soft veggies inside win over anyone who doubts. I always carry extra recipe copies because I know people will want them.

No Gluten Needed

My friends who can't have gluten can still enjoy this. Just swap in any measure-for-measure gluten free flour mix. I've tried lots of brands and they all turn out great. Nobody can spot any difference.

Quick After-Cooking Cleanup

Another thing I really like about making this is how few dishes you need. Just a mixing bowl and something to bake in. Less cleanup means more time hanging out and eating good food with people you care about.

Save Some For Later

When zucchini season hits, I cook extra batches for the freezer. Cut it into pieces, wrap it well and stick it in the freezer. It's so nice to grab a piece on busy nights. Even two months later, it still tastes like summertime.

Beyond Just Food

This zucchini dish means way more than just another thing I cook. It's lazy weekend mornings with friends, summer parties and holiday memories. Each time I make it, I think about my mom and all the care she put into her food.

A slice of zucchini frittata topped with fresh parsley, served on a white plate. Save this
A slice of zucchini frittata topped with fresh parsley, served on a white plate. | emilyscooks.com

Common Questions

→ Why should I dry the zucchini?
Gets rid of water that would make your dish too wet.
→ Can I cook a tinier batch?
Cut everything in half for an 8x8 dish but cook for the same time.
→ What zucchini should I pick?
Go for medium ones without big seeds that might taste too strong.
→ How many days will it last?
It'll stay good in your fridge for about 5 days.
→ Why wait before eating it?
Letting it cool helps it firm up so it won't fall apart when served.

Zucchini Italian Bake

A flavorful baked dish with fresh zucchini, diced onions and two delicious Italian cheeses. Prepared completely at home.

Preparation Time
25 Minutes
Cooking Time
60 Minutes
Overall Time
85 Minutes
Shared By: Emily

Meal Type: Main Courses

Skill Level: Moderate

Cuisine Style: Mediterranean-American

Makes: 12 Portions (1 9x13 dish)

Special Diet: Vegetarian-Friendly

What You’ll Need

01 items 1½ pounds fresh zucchini.
02 items 1 small yellow onion.
03 items 2 cloves fresh garlic.
04 items ½ cup virgin olive oil.
05 items 4 jumbo eggs.
06 items 1 cup all-purpose flour.
07 items 4 teaspoons baking powder.
08 items ½ cup freshly grated Parmesan.
09 items ½ cup freshly grated Romano.
10 items ½ teaspoon sea salt.
11 items ½ teaspoon ground pepper.
12 items ¼ teaspoon dried basil.
13 items Butter for pan coating.

Steps To Make It

Step 01

Get your oven hot at 375°F. Cut zucchini into thin 1/8 inch slices and gently dry them with paper towels.

Step 02

Throw together your zucchini, onion, and garlic. Whisk oil with eggs, then pour over your veggie mix.

Step 03

Stir in your flour, baking powder, both cheeses and all your spices.

Step 04

Pour everything into a 9x13 pan you've smeared with butter. Cook for 55-60 minutes until the top looks golden brown.

Extra Notes

  1. Don't guess on zucchini amounts, weigh them.
  2. Pick smaller zucchini without lots of seeds.
  3. Let it cool down for 5 minutes before you cut it.

Essential Tools

  • 9x13 baking dish.
  • Slicer or food processor.

Allergen Info

Review ingredients carefully for allergens, and consult a healthcare provider if you're unsure.
  • Milk products.
  • Egg products.
  • Gluten.

Nutritional Info (Per Serving)

Keep in mind, this data is an estimate and not a substitute for professional dietary advice.
  • Calories: 188
  • Fat Content: 13 grams
  • Total Carbs: 11 grams
  • Protein Content: 6 grams