1 cup of rice
2 cups of tomato sauce
Heat (at maximum power) a pan with a spray of oil, add the rice. Cook for 10s. Add the tomato sauce and cook until it boils.
Then, put the pan on another hob. Heat over very low heat with a lid on the pan for 10 or 15 minutes until there’s no tomato sauce left.
You might have to stir the rice from time to time to prevent it from burning at the bottom. But don’t do it to often, as you want the rice to absorb the water.