Instant noodles are very cost-effective. You can eat them in a few minutes with boiling water, but you will definitely suffer from malnutrition if you eat them for a long time. You must eat more fruits.

2. Self-heating chafing dish and self-heating rice

Self-heating chafing dish and self-heating rice contain not only noodles or rice but also meat dishes, which are definitely much more delicious than instant noodles. However, you should pay attention to safety and avoid burns, and the ingredients inside are definitely not fresh due to long-term storage, so it is better to eat less.

3. Biscuits and bread

These can be eaten as breakfast or afternoon snacks with a can of milk

Summary: If conditions permit, I suggest you buy an electric cooker yourself. It is also very convenient to cook noodles or porridge at ordinary times, and it is more clean and hygienic.