Eggs for breakfast sandwiches - Spray muffin pan with non-stick cooking spray. Crack one egg into each well. Sprinkle with salt & pepper or any seasoning. Bake in the oven at 350 for about 15 minutes. You could cook them for a bit less if you wanted a runny yolk. However, I wanted to be sure that the eggs were fully cooked. Store your cooked eggs in a tupperware container in the refrigerator for about a week. Grab an egg, English muffin & cheese and you have a quick breakfast.