Creating Freezer Breakfast Sandwiches is simple if you follow these easy steps:

1. Preheat Oven: Preheat your oven to 350°F (175°C). If using cooked sausage patties or bacon, ensure they are heated through.
2. Cook Eggs: In a bowl, whisk the eggs and season with salt and pepper. Pour the mixture into a greased baking dish and bake for 15-20 minutes, or until set. Remove from the oven and let cool slightly.
3. Prepare Muffins: While the eggs are baking, split the English muffins in half and toast them lightly in a skillet with a little butter or oil until golden brown.
4. Assemble Sandwiches: Once the eggs are cool, cut them into squares that fit the muffin halves. On the bottom half of each muffin, layer a slice of cheese, a piece of egg, a sausage patty or bacon strip, and a handful of spinach (if using).
5. Top and Wrap: Place the top half of the muffin on each sandwich. Wrap each sandwich tightly in plastic wrap or foil.
6. Freeze: Place the wrapped sandwiches in a freezer-safe bag or container. Freeze for up to 2 months.
7. Reheat: To enjoy, unwrap the sandwich and microwave for 1-2 minutes, or until heated through. Alternatively, you can bake from frozen at 350°F (175°C) for 20-25 minutes.

By following these steps, you’ll have a batch of delicious breakfast sandwiches ready to go whenever you need them!