Mushroom and Leek Quiche with Gruyère

Ingredients

• 1 Pie Pastry Dough Store Bought/Frozen or Homemade
• 2 tbsp Olive oil
• 1 large Leek bottom white part only, trimmed and thinly sliced
• 10 oz. Variety of Mushrooms sliced (Baby Bellas, Oyster, Shiitake, King Trumpet)
• 1 tbsp Butter unsalted
• 4 Garlic cloves peeled and sliced thin
• 4-5 Sprigs of Fresh Thyme destemmed
• 4 Large Eggs one for yolk only
• 1-1/2 cups Heavy Cream
• 1 block Fresh Gruyère
• Salt
• Pepper