Sweet Corn and Zucchini Pie

Bahan-bahan (6 porsi)

• 4 tablespoons butter
• half of a yellow onion, diced
• 2 ears sweet corn
• 2 large zucchini, sliced very thinly (about 4 cups)
• 8 ounces sliced mushrooms
• 1 tablespoon dried basil
• 1 teaspoon dried oregano
• 1/2 teaspoon salt
• 12 ounces shredded cheese (I used both Mozzarella and Swiss)
• 4 eggs, beaten