Taste the Bolognese and add the sugar, if needed, salt and pepper. Cook the spaghetti according to packet instructions. Drain and top with the Bolognese sauce. Serve in bowls with grated Parmesan.
Or, you could cut them into strands with a sharp knife. Make the cucumber spaghetti. Rinse the cucumbers then cut them (skin, seeds and flesh) into long, thin strands that resemble spaghetti.