What can I do to spice up leftover spaghetti and meat?

Put a layer in a cerole dish, add a layer of mozzarella cheese, then add another layer of spaghetti and top that with a nice blanket of cheese. Sprinkle some Parmesan and a few red pepper flakes (if you like some kick), and bake at 350 until cheese is golden and bubbly. It's delicious.