Mushroom and Gruyere Crustless Quiche Recipe | Foodal

Ingredients

• Nonstick cooking spray
• 1 tablespoon unsalted butter
• 3 tablespoons olive oil, divided
• 2 cups mixed mushrooms (such as shiitake, oyster, and cremini), stemmed and thinly sliced
• 2 leeks, white and light green parts, thinly sliced
• 1/2 cup thinly sliced fennel bulb, fronds reserved and roughly chopped
• 3/4 teaspoon coarse salt, divided
• 1/2 teaspoon freshly ground black pepper, divided
• 12 large eggs
• 1/2 cup half-and-half
• 2 teaspoons chopped fresh thyme, plus more for garnish
• 1 cup grated Gruyere cheese, divided
• 1/2 cup grated fontina cheese