Slice each croissant in half using a bread knife. Do not cut completely through. Set them aside while you prepare the eggs and other sandwich ingredients.

Place bacon into a skillet over medium heat. Cook until crispy on both sides. Remove it from the pan and place on paper towels to remove extra oil.

Crack the eggs into a bowl. Add milk, salt, and black pepper. Whisk well until the mixture becomes smooth, light, and slightly fluffy.

Melt butter in the skillet over low heat. Pour in the egg mixture. Stir gently with a spatula until the eggs become soft, creamy, and fully cooked.

Place the sliced croissants into a warm oven for about three minutes. This makes them lightly crisp outside while keeping the inside soft and buttery.

Place one slice of cheddar cheese over the warm scrambled eggs. Let it melt naturally from the heat for rich flavor and creamy texture.

Place lettuce on the bottom croissant if using. Add scrambled eggs, melted cheese, crispy bacon, tomato slices, and chopped fresh chives.

Place the top half of each croissant over the filling. Press gently to hold everything together without crushing the flaky croissant layers.

Serve the sandwiches while they are warm. Enjoy the buttery croissant with the creamy eggs and melted cheese for the best taste.

Pair the sandwich with fresh fruit, coffee, or orange juice. This breakfast is filling, delicious, and perfect for busy mornings or relaxing weekends.