Frittata With Four Flavors - With meat

6 large eggs 2 tablespoons whipping cream 1/2 teaspoon salt , plus a pinch 1/4 teaspoon fresh ground black pepper 1 tablespoon olive oil 1 tablespoon butter[...]

2 tablespoons unsalted butter 4 cups thinly sliced leeks , including tender green tops salt and pepper, plus a little extra salt 6 eggs 1/2 cup mixed minced[...]

cooking spray 3 cups sliced cremini mushrooms 1 1/4 cups thinly sliced leeks (about 2 large) 1/2 cup 1% low-fat milk 2 teaspoons butter , melted 3/4 teaspoon[...]