Food that start with R

Raisins are dried sultana grapes, and in many countries they are just called sultanas.
Raisins can be added to cakes and puddings or just eaten by themselves. They are an excellent lunchbox snack.

A rasher is a thin slice of bacon, ham or other thin cuts of pork.

Rice is the largest crop grown for food in the world. Most rice is grown in China and India. Rice is a type of grass that grows to about a metre high. Rice needs a lot of water to grow, and in countries like Australia that have a low rainfall people are calling for rice growing to stop.
Rice is usually eaten cooked plain, but can be prepared in a lot of different ways and served with lots of different foods. Rice can even be puffed, a little like popcorn.

Something is roasted if it is cooked for a long time over dry heat, like in an oven or over a fire.
Meat and vegetables are both roasted either whole or in large pieces.

Rolled oats are oat grains that have first had the hard outer husk removed, then they are flattened by heavy rollers, lightly steamed and toasted.
Rolled oats can be used to bake cookies or cakes, but most often they are cooked on their own to make porridge.

Rum is an alcoholic drink made from sugarcane, or products made from sugarcane like molasses. The sugarcane juice is fermented and distilled and then aged in barrels.