Mushroom Leek Quiche

Quiche is a short, fancy tart with a buttery crust and a rich, creamy filling. Mushrooms and leeks make this recipe extraordinary, full of flavor, and a wonderful dish for brunch, potlucks, picnics and to have frozen at all times, just in case.

• 14oz portobello or white cap mushrooms, sliced
• 2 large leeks, white and light green parts only (about 2 cups sliced)
• Salt and black pepper
• ¼ cup grated Gruyere cheese, optional

• ¾ cup natural yogurt (or Greek)
• ¾ cup whipping or heavy cream
• 3 eggs, at room temperature
• Salt and pepper, to taste