Preheat oven to 350°F. Spray a silicone muffin tin with oil or nonstick spray, so well coated.In a medium-sized bowl, whisk together eggs with spinach. Add desired spices.Pour egg mixture into muffin tin cups, almost to the top. You should be able to make 12 muffins.Bake at 350°F for about 22-25 minutes, or until eggs are completely set.Let cool and remove from tins.To reheat, you can microwave for about 30 seconds.