Step 1: Prepare the Croissants

Preheat your oven to 350°F (175°C). Slice the croissants in half and place them on a baking sheet. Toast them for about 5 minutes until they’re lightly crispy. This enhances their texture and prevents sogginess when adding the fillings.

Step 2: Cook the Eggs

Crack the eggs into a bowl, add milk, salt, and pepper, then whisk until well combined. Heat butter in a non-stick skillet over medium-low heat. Pour in the egg mixture and stir gently with a spatula until soft and scrambled. Remove from heat before they become too dry.

Step 3: Cook the Bacon or Ham

If using bacon, cook it in a skillet over medium heat until crispy, then transfer to a paper towel to drain excess grease. If using ham, warm it in a skillet for about 1-2 minutes per side.

Step 4: Assemble the Sandwiches

Place a slice of cheese on the bottom half of each toasted croissant. Add scrambled eggs, then bacon or ham. If using avocado or greens, add them now. Top with the other half of the croissant.

Step 5: Melt the Cheese

Place the assembled sandwiches back in the oven for 3-5 minutes or until the cheese melts. Serve immediately while warm and delicious!