01 -
Preheat the oven to 375°F (190°C). Grease a 9-inch pie dish or similar baking dish.
02 -
Melt butter in a large skillet over medium heat. Add diced onion and sauté until translucent, about 3 minutes.
03 -
Stir in sliced mushrooms and cook for another 3–4 minutes until softened and lightly browned.
04 -
Add sweet corn and thinly sliced zucchini. Season with basil, oregano, and salt. Cook for 6–8 minutes, stirring occasionally, until veggies are tender and liquid has evaporated.
05 -
Remove skillet from heat and allow vegetables to cool slightly.
06 -
In a large mixing bowl, whisk the eggs and shredded cheese together. Add the cooked vegetable mixture and stir until combined.
07 -
Pour the mixture into the prepared pie dish and spread evenly. Bake for 30–35 minutes, or until set and lightly golden on top.
08 -
Let the pie cool for at least 10 minutes before slicing and serving.