Nonna's Zucchini Pie Recipe

A good zucchini bake should be tender in the center, golden on top, and sturdy enough to slice into clean, generous squares. This one checks every box. It is rich with eggs, Parmesan, and mozzarella, but the thin rounds of zucchini keep it fresh and light enough for breakfast, brunch, lunch, or an easy dinner with a salad.

This recipe has the cozy feel of a crustless zucchini pie, with Italian-style breadcrumbs doing two useful jobs. A thin layer on the bottom helps the slices lift from the pan, while a second layer on top crisps under a spritz of oil and turns beautifully golden in the oven.

It is simple, flexible, and very forgiving. Use 10 eggs for a slightly thinner bake or 12 eggs for a fuller 9x13-inch pan. Add a little extra Parmesan if you like a sharper, saltier flavor. Use cream for richness, half-and-half for balance, or milk if that is what you have ready.

A simple zucchini egg bake comes out golden, cheesy, and ready to slice.

Why this zucchini egg bake works so well

The best part of this dish is the balance. Eggs give the bake structure. Zucchini brings moisture and a mild, garden-fresh flavor. Parmesan adds a savory bite, while mozzarella melts through the filling and browns gently on top.

The breadcrumbs are more than a garnish. They give the bottom a little grip and create a light crust-like layer without making pastry or rolling dough. On top, they toast into a crisp finish, especially when sprayed generously with olive oil or avocado oil spray.

This is also a practical recipe when zucchini is in season. Small zucchini work especially well because they are tender, less watery than oversized squash, and easy to slice into neat rounds. If your zucchini are larger, the recipe will still work, but you may want to slice them thin and blot off extra moisture before mixing them into the eggs.

Serve it warm, at room temperature, or even chilled from the fridge. It is one of those dishes that feels just as welcome at a weekend brunch as it does packed into a lunch container the next day.

Recipe at a glance

Detail	Amount
Prep time	15 minutes
Cook time	45 to 55 minutes
Rest time	10 to 15 minutes
Oven temperature	400°F
Pan size	9x13-inch baking dish or Pyrex dish
Servings	About 8 to 10 slices

You will know it is done when the center is set, the edges are lightly puffed, and the top is golden brown. If the top needs a little more color after baking, a quick 1 to 2 minutes under the broiler will help crisp the breadcrumbs.

Ingredients

For this cheesy zucchini egg bake, gather everything before you start. The mixture comes together quickly once the zucchini is sliced.

• 10 to 12 large eggs

• 3 to 4 small zucchini, sliced into thin rounds

• Olive oil, for greasing the baking dish

• Italian-style breadcrumbs, enough for a thin layer on the bottom and top

• Garlic powder, to taste

• Salt, to taste

• Black pepper, to taste

• 1 cup grated Parmesan cheese, or more to taste

• 1 to 1½ cups shredded mozzarella cheese, divided

• 2 to 3 tablespoons heavy cream, half-and-half, or milk

• Olive oil spray or avocado oil spray

  
  

Ingredient notes

Eggs

Use 10 eggs if you prefer a slightly lighter, thinner bake. Use 12 eggs if you want thicker slices or if your zucchini are on the larger side. Large eggs are the best fit for this recipe.

Zucchini

Small zucchini are ideal because they have tender skin, smaller seeds, and a sweeter flavor. Slice them into thin rounds so they soften evenly while the eggs bake. Thick slices can stay too firm and make the bake harder to slice cleanly.

Parmesan

Grated Parmesan adds saltiness and depth. Start with 1 cup, then add more if you like a stronger cheese flavor. Since Parmesan can be salty, season the egg mixture thoughtfully.

Mozzarella

Use about 1 cup in the egg mixture, then save the remaining ½ cup or so for the top. The cheese inside melts through the bake, while the cheese on top helps create a golden, bubbly finish.

Cream, half-and-half, or milk

Heavy cream gives the richest texture. Half-and-half keeps it creamy without feeling too heavy. Milk works well too, especially if you want a lighter bake.

Italian-style breadcrumbs

These usually include dried herbs and seasoning, which adds flavor without extra chopping. Use a light hand. You want an even dusting, not a thick bread layer.

Simple ingredients make this bake easy to assemble.

How to make it

Before you begin, set out a large mixing bowl, a whisk, and a 9x13-inch baking dish. A glass Pyrex dish works beautifully because you can see the edges as they bake, but any similar baking dish is fine.

1. Preheat the oven.

   Heat your oven to 400°F. Let it fully preheat so the eggs begin setting evenly once the dish goes in.

   
   

2. Grease the baking dish.

   Lightly coat the bottom and sides of a 9x13-inch baking dish or Pyrex dish with olive oil. Spead around the corners and sides of the dish.

   
   

3. Add the first breadcrumb layer.

   Sprinkle a thin, even layer of Italian-style breadcrumbs over the bottom of the dish. Tilt the dish gently to help coat the surface. This layer should be light but coated, not packed down.

   
   

4. Whisk the egg mixture.

   In a large bowl, whisk together the eggs, garlic powder, salt, black pepper, Parmesan cheese, about 1 cup of the shredded mozzarella, and the heavy cream, half-and-half, or milk. Whisk until the yolks and whites are fully combined.

   
   

5. Fold in the zucchini.

   Add the sliced zucchini to the bowl. Gently mix until every slice is coated in the egg and cheese mixture. Try not to break the rounds as you stir.

   
   

6. Fill the baking dish.

   Pour the zucchini and egg mixture into the prepared dish. Spread it into an even layer so the zucchini is distributed from corner to corner.

   
   

7. Add the remaining mozzarella.

   Sprinkle a light layer of the remaining shredded mozzarella over the top. You can use ½ cup or a little more, depending on how cheesy you want the top.

   
   

8. Finish with breadcrumbs.

   Sprinkle another light layer of Italian-style breadcrumbs over the cheese. This will bake into a crisp, golden topping.

   
   

9. Spray the top generously.

   Spray the breadcrumbs well with olive oil spray or avocado oil spray. This helps them toast instead of drying out.

   
   

10. Bake until set and golden.

Bake for 45 to 55 minutes, or until the center is set and the top is beautifully golden brown. The bake should not jiggle loosely in the center. If the top needs more color, broil for 1 to 2 minutes at the end. Watch closely because breadcrumbs can brown fast.

11. Rest before slicing.

Let the zucchini bake rest for 10 to 20 minutes before slicing. This helps the eggs settle and makes the pieces cleaner and easier to serve.

Coating the zucchini well helps every bite bake up tender and flavorful.

Tips for the best texture

This recipe is easy, but a few small details make a big difference.

Slice the zucchini thinly

Thin rounds cook more evenly and blend into the egg mixture better than thick slices. Aim for slices that feel delicate but still hold their shape. A sharp knife works fine, but a mandoline can help if you want very even rounds.

Do not overload the breadcrumbs

A thin layer is enough. Too many breadcrumbs can make the bottom dry or heavy. Think of them as a light coating that adds texture, not a full crust.

Season with the cheese in mind

Parmesan and Italian-style breadcrumbs both bring salt. Add salt to taste, but avoid going too heavy before the bake goes into the oven. If you are unsure, use a modest amount, then serve with a little extra Parmesan at the table.

Give it time to rest

The resting time matters. If you slice the bake right away, the eggs may look soft and loose. After 10 to 15 minutes, the texture firms up and the slices hold together better.

Broil only if needed

If the eggs are set but the top looks pale, a short broil gives the breadcrumbs more color. Keep the dish on the middle or upper-middle rack and watch the top carefully. One extra minute can be the difference between golden and too dark.

Easy variations

Once you have made the basic version, this recipe is easy to adjust.

Add herbs

Fresh basil, parsley, or chives add brightness after baking.

Add onion

Thinly sliced or sautéed onion adds sweetness.

Change the cheese

Use provolone, fontina, or a little sharp cheddar with the mozzarella.

Add heat

A pinch of crushed red pepper gives the egg mixture a little kick.

Add more vegetables

Try chopped spinach, roasted red peppers, or mushrooms, but AVOID adding too much moisture. I personally like to keep recipe to zucchini.

Make it heartier

Add cooked crumbled sausage or diced ham if you want a more filling meal.

If you add vegetables with a lot of water, such as mushrooms or spinach, cook them first and drain off any liquid. Zucchini already adds moisture, so keeping extra liquid out helps the eggs set properly.

What to serve with zucchini egg bake

This bake can stand alone, especially for breakfast or lunch, but it also pairs well with simple sides.

For brunch, serve it with fresh fruit, toasted bread, or a green salad. For dinner, add roasted potatoes, sliced tomatoes, or a bowl of soup. It also works well as part of a larger spread with olives, marinated vegetables, and crusty bread.

For a lighter plate, try it with:

• Arugula salad with lemon and olive oil

• Sliced tomatoes with salt and basil

• Fresh berries or melon

• Toasted sourdough

• Simple cucumber salad

  
  

For a heartier meal, add:

• Roasted potatoes

• Grilled chicken

• Italian sausage

• Tomato soup

• Garlic bread

  
  

The flavor is mild and cheesy, so it fits with many sides without competing with them.

How to store and reheat leftovers

Let the bake cool completely before storing. Place slices in an airtight container and refrigerate for up to 3 to 4 days.

To reheat, warm slices in a 325°F oven until heated through, or use the microwave for a quicker option. The oven gives the best texture because it helps the breadcrumb topping crisp again. If the top looks dry, a quick spray of olive oil before reheating can help.

You can also enjoy leftovers cold or at room temperature, which makes this a nice make-ahead option for lunchboxes, picnics, and busy mornings.

If freezing, wrap individual slices tightly and place them in a freezer-safe container. The texture may soften a bit after thawing because zucchini holds water, but the flavor will still be good. Thaw in the refrigerator overnight before reheating.

Let the bake rest before slicing so each piece holds together.

A simple bake worth keeping in rotation

This cheesy zucchini egg bake is the kind of recipe that does not ask for much but gives you a lot back. It uses everyday ingredients, fills a full baking dish, and tastes good warm, room temperature, or chilled the next day.

The key is keeping the layers light and balanced. Grease the dish, dust it with breadcrumbs, mix the zucchini well into the egg and cheese mixture, then finish the top with more mozzarella, breadcrumbs, and a generous spray of oil. After that, the oven does the work.

Let it rest, slice it into squares, and serve it with whatever sounds good. A simple salad, fresh fruit, or toasted bread is plenty. This is easy comfort food with just enough green to make it feel fresh.