Foryoueats: Tomato Quiche

Ingredients

• 1 (9-inch) unbaked deep dish pie crust
• 1 tablespoon olive oil
• 1 onion, thinly sliced
• 2 tomatoes, peeled and sliced
• 2 tablespoons all-purpose flour
• 2 teaspoons dried basil
• 3 large eggs, beaten
• ½ cup milk
• salt and pepper to taste
• 1 ½ cups shredded Colby-Monterey Jack cheese, divided