2 cups leftover roasted vegetables, such as potatoes, carrots, parsnips and onions
2 cups leftover cheeses, cut into pieces, such as Brie, Parmesan, and/or Gruyere
1/4 pound Canadian bacon or Black Forest ham, chopped
1/2 cup chopped scallions
12 eggs, at room temperature
2 cups milk, at room temperature
1 teaspoon kosher salt
1/2 teaspoon crushed red pepper flakes
YIELD 8 servings
Preheat the oven to 350 degrees F. Grease a 9-by-13-inch baking dish with the olive oil. Spread the vegetables in the bottom, then top with a layer of the cheeses, then the ham, and then the scallions.
Whisk together the eggs, milk, salt and red pepper flakes in a medium bowl. Pour the mixture over the layers and bake until lightly golden and the egg is set, about 50 minutes Allow the bake to sit for 5 minutes before cutting and serving.