Slice the croissants in half. Optionally, spread a small amount of butter on the inside of each croissant half and toast them lightly in a skillet until golden brown, or use a toaster oven for a quicker result.

In a skillet, scramble the eggs over medium heat. Season with a pinch of salt and pepper. If you prefer a fried egg, cook to your desired level of doneness.

Cook the bacon in the same skillet until crispy, then set aside on paper towels to drain excess grease. If using turkey bacon, cook according to the package instructions.

Place a slice of cheese on the bottom half of each toasted croissant. Layer with scrambled eggs, bacon, spinach, and a slice of tomato. Top with the other croissant half.

Serve immediately, optionally with a side of fruit or a light salad for a balanced meal.