Make Freezer Breakfast Sandwiches You’ll need 8 eggs, a splash of milk, 1/2 cup of cheese, 1 pepper, 1/4 of an onion, bread. Chop the pepper and onion and set aside in a bowl. Add a splash of milk & whisk eggs a bit before mixing in the veggies. Add salt & pepper to taste. Pour egg and veggie mixture into a greased pan or baking dish. Bake at 300 degrees for approximately 20 minutes or until egg mixture has set. Take out of oven and cut into 6 squares. Lay out 2 slices of bread per egg square. Using a spatula, place egg squares on bread and sprinkle a bit of cheese on top. Close sandwiches. Wrap sandwiches in tin foil. Put sandwiches in freezer. Reheat later to enjoy!