Prep Day Idea -- HEALTHY & Easy Breakfast Sandwiches To-Go All Week Long! via Undressed Skeleton. Bake the eggs in a muffin tin atb350 for 15 minutes- scrambled or not. Also can get creative with what to put on it. Veggies- spinach and peppers or mushroom and tomatoes, or meat- sausage, turkey bacon, or ham. All of the food bakes in the oven for prep!