Broccoli Cheese Quiche

2 tablespoons butter
1 onion, minced
1 teaspoon minced garlic
2 cups chopped fresh broccoli
1 (9 inch) unbaked pie crust
1 1/2 cups shredded mozzarella cheese
3 eggs, well beaten
1 cup milk
1/2 teaspoon salt
1/4 teaspoon black pepper

Preheat oven to 350 degrees F (175 degrees C).
Over medium-low heat melt butter in a large saucepan. Add onions, garlic and broccoli. Cook slowly, stirring occasionally until the vegetables are soft. Sprinkle about 1/2 cup of cheese on the bottom of the crust. Spoon vegetables into crust and sprinkle with remaining cheese.
Combine eggs and milk. Season with salt and pepper. Pour egg mixture over vegetables and cheese.
Bake in preheated oven for 30 minutes, or until center has set.