Heat oven to 400 degrees. Spray four ramekins with cooking spray.
Heat macaroni and cheese according to package directions. Once cooked, stir in spinach, 1 cup cheese, bacon, salt and pepper. Let mixture stand 10-15 minutes to cool.
Add eggs. Spoon evenly into ramekins. Sprinkle with remaining cheese. Bake 20 minutes, or until centers are set.