Combine pasta and water

• Put the pasta in a large microwave-safe bowl.
• Add the water and salt so the pasta is fully covered.

Microwave the pasta

• Microwave on high until the pasta is tender, stirring halfway through.
• Check that the water has been absorbed and the pasta is cooked through.

Add sauce and cheese

• Stir in the tomato sauce and microwave briefly to heat it through.
• Top with grated cheese and let it melt before serving.