
Nothing says summer in my kitchen quite like a slice of sweet corn zucchini pie. With its golden cheese top and soft, savory veggies inside, this is the recipe I turn to when my backyard zucchini is overflowing and the market’s corn is extra juicy. It brings together garden freshness with easy comfort, so it is just right for brunch, light dinners, or a potluck centerpiece.
The first time I threw this together, my intention was to tidy up the vegetable drawer but my family ended up requesting seconds before the pie even cooled. Now it is a seasonal must in our house and a favorite for end-of-summer gatherings.
Ingredients
- Butter: Gives the crustless pie richness and keeps the veggies from sticking to the pan. Choose unsalted butter for more control over saltiness.
- Yellow onion: Offers natural sweetness as the base and tastes best when firm and fragrant.
- Sweet corn: Brings juicy pop and slight crunch. Slice kernels right off the cob for maximum flavor during summer months.
- Zucchini: The star here with mild flavor and tender bite. Look for firm, small to medium zucchinis for less bitterness.
- Mushrooms: Deliver umami earthiness. Select mushrooms with no dark spots or mushiness for best texture.
- Dried basil and oregano: Your classic Italian-inspired herbs which balance the vegetables and cheese.
- Salt: Seasons everything evenly. Kosher salt gives clean flavor and is easy to distribute.
- Mozzarella and Swiss cheese blend: Gives stretch and creaminess with a slightly nutty hint. Always shred your cheese from a block for the best melt and texture.
- Eggs: Bind everything so the pie holds together when sliced. Use fresh eggs with bright yellow yolks for a richer pie.
Instructions
- Prepare Your Baking Dish:
- Grease a nine-inch pie dish thoroughly with butter or nonstick spray and preheat your oven to 375 degrees Fahrenheit to avoid sticking and ensure even baking.
- Sauté the Aromatics:
- Melt the butter over medium heat in a large skillet and add the diced onion. Cook slowly for about three minutes until the onions are soft and just starting to turn golden. This step creates a gentle flavor base that does not overpower the vegetables.
- Cook the Mushrooms:
- Once the onion is ready, add the sliced mushrooms. Stir occasionally and cook for three to four minutes until the mushrooms have released their moisture and begin to brown at the edges. Letting them brown adds savory flavor depth.
- Add the Vegetables and Herbs:
- Toss in the sweet corn and thinly sliced zucchini. Sprinkle in dried basil, oregano, and salt. Continue cooking for around six to eight minutes. Your goal is to let the zucchini get tender and give off its excess water so your pie comes out set not soggy.
- Cool the Mixture:
- Take the skillet off the heat and set aside for a few minutes so the vegetables are not piping hot when you mix them with eggs. Hot veggies can start to cook eggs too quickly.
- Mix Eggs and Cheese:
- In a big bowl, vigorously whisk the eggs until well-blended. Scatter in the shredded cheese and combine. This ensures an even cheese pull and creamy textured pie.
- Combine and Assemble:
- Add the cooled vegetable mixture to your eggs and cheese bowl and stir slowly until everything is coated and evenly distributed. Pour everything into your prepared baking dish and smooth the top with a spatula.
- Bake to Perfection:
- Transfer your pie to the oven and set a timer for thirty to thirty five minutes. Look for lightly golden edges and a gentle puff in the center showing it is fully set. If you tap the pan there should be no liquid jiggle left.
- Cool and Serve:
- Let the pie rest out of the oven for at least ten minutes before slicing. This patience translates to neater slices and improved flavor as everything melds together.

I especially adore using corn snipped fresh from the cob because you really can taste the difference. When serving this at a family picnic, my niece called it vegetable cake and giggled all through dinner. That memory alone keeps it on my summer menu.
Storage Tips
Let leftovers cool completely before wrapping snugly in foil or airtight containers. It keeps in the fridge up to three days. For a quick breakfast, I like slicing a cold wedge and giving it a zap in the microwave or a few minutes under the broiler for extra crisp edges. Sweet Corn Zucchini Pie also freezes like a dream. Cut it into portions before freezing for speedy single-serve meals on busy days.
Ingredient Substitutions
No fresh corn or zucchini nearby Use frozen corn straight from the bag and sub yellow squash for zucchini with no problems. Swap the cheese to cheddar or pepper jack for a heartier or spicier option. For a vegetarian main course, this pie also tolerates extra mushrooms or baby spinach for more earthiness and color.
Serving Suggestions
Pair slices with a simple tomato salad or a pile of mixed greens for a light lunch or dinner. For a brunch buffet, it shines next to fruit salad and a basket of scones. If serving for a potluck, I suggest keeping extra shredded cheese on hand to sprinkle over the top during the last ten minutes of baking for an even cheesier layer.
Cultural or Historical Context
This kind of veggie pie feels like a homey take on a crustless quiche. The tradition of using up abundant summer squash and corn is a staple in American farm kitchens. Blending these two ingredients in a savory bake means nothing from the harvest goes to waste and yet, the pie tastes like a cross between Midwest casserole comfort and Mediterranean herby brightness.
Seasonal Adaptations
Make the most of your market haul by folding in other summer vegetables like roasted red pepper diced cherry tomatoes or even fresh herbs like basil and parsley. For a fall version swap zucchini for shredded butternut squash and add a pinch of nutmeg. During spring try adding baby leeks or spinach with a little extra Swiss cheese for even lighter flavor.
Success Stories
Many friends have sent me pictures of their own pies hot out of the oven reporting that even their picky eaters reached for seconds. This recipe travels well and reheats beautifully. A neighbor once brought it to a block party and there was not a crumb left.
Freezer Meal Conversion
You can double the recipe and bake it in two pans eating one now and letting the other cool completely before slicing and storing flat in freezer-safe bags. To serve simply thaw overnight in the fridge and warm slices gently in the oven to restore their just-baked texture.

This summer pie is the kind of dish that brings people together at the table. I hope your family enjoys it as much as mine does every year.
Common Recipe Questions
- → Can I use frozen corn instead of fresh?
Yes, you can substitute frozen corn. Thaw and drain before adding to prevent extra moisture.
- → What cheese works best for this pie?
A Mozzarella and Swiss cheese blend melts beautifully, but cheddar or Gruyère are tasty alternatives.
- → How do I prevent the pie from becoming soggy?
Cook vegetables until liquid has evaporated and let them cool slightly before mixing with eggs and cheese.
- → Is this dish suitable for vegetarians?
Yes, it features only vegetables, cheese, and eggs with no meat products included.
- → Can I make this pie in advance?
Absolutely! Cool completely, cover, and refrigerate. Reheat in the oven for best texture.