Preheat the oven to 350°F. Line a 9x13-inch baking pan with parchment paper and grease it well.
Add the eggs, cottage cheese, salt and pepper to a blender and blend until completely smooth. Stir in the chives.
Pour the egg mixture into the pan and bake for 18 to 22 minutes, until the center is just set and the eggs are soft and fluffy. Avoid overbaking so they stay tender.
Let the eggs rest for 5 minutes, then cut into 6 squares. Lay a slice of cheddar on each square so it melts from the heat of the eggs.
Butter and toast the English muffins. Warm the Canadian bacon in a skillet over medium heat for 1 to 2 minutes per side.
Build each sandwich with a slice of Canadian bacon and a cheesy egg square between the muffin halves.Serve warm, or cool completely, wrap individually and freeze. Reheat from frozen in the microwave for 60 to 90 seconds.