Preheat your oven to 375°F (190°C).

Place the pie crust in a 9-inch pie dish and crimp the edges.

In a mixing bowl, whisk together the eggs and milk until well combined.

Stir in the shredded cheese and chopped vegetables into the egg mixture.

Add salt and black pepper to taste, mixing well.

Carefully pour the egg mixture into the prepared pie crust.

Bake in the preheated oven for 30 to 35 minutes, or until the center is set and the top is lightly golden.

Let the quiche cool for about 10 minutes before slicing.