LEEK TOMATO AND MUSHROOM QUICHE (Adapted from Pip and Ebby) - Tailgate Guru

Ingredients

• Two 9-inch ready-to-bake pie crusts or frozen pie crusts
• 2 TBSP extra-virgin olive oil
• 1 leek, halved lengthwise and thinly sliced (white and light green parts only)
• 8 oz. cherry or grape tomatoes, halved
• 1⁄4 cup flat-leaf parsley, chopped
• 8 oz. sliced fresh mushrooms, chopped
• Salt and pepper, to taste
• 2 cups cheddar cheese, shredded
• 8 large eggs
• 1 1⁄2 cups milk