These really worked for me when I was in hostel:
- Buy a rice cooker immediately. Throw in rice and water and it cooks itself while you study.
- Make instant noodles with added veggies like frozen peas and carrots to add nutrition.
- Boil eggs which require just boiling water and 10 minutes.
- Make sandwiches with bread, peanut butter, bananas or cheese.
- Microwave frozen veggies and add salt and chaat masala.
- Make simple pasta by boiling and mixing with butter and salt.
- Buy instant dal packets that just need water.
- Make smoothies with banana and milk or yogurt.
- Buy bread and paneer and make quick wraps.
- Canned tuna mixed with mayo and eaten on bread.
Basically anything that needs boiling water or microwaving. Keep instant noodles, oats, peanut butter, bread, eggs and frozen veggies on hand always.