Preheat your oven to 400 degrees F and spray two large oven-safe ramekins with a non-stick spray. Set aside.
In a medium non-stick skillet, add the sausage. Cook over medium heat until fully-cooked, about 6-7 minutes. Transfer to a plate that has been lined with a paper towel to get rid of any excess grease.
To your prepared ramekins, divide the marinara and sausage among both of them. Crack two eggs into each ramekin, and top with heavy cream. Sprinkle each evenly with mozzarella and parmesan cheese. Season with salt and black pepper.
Bake the eggs for 12-14 minutes or until the eggs are done to your liking and the cheese is bubbly in brown. Remove from heat and let stand for 3-4 minutes.
Serve garnished with fresh basil and enjoy with a slice of toast!