Food that is great to freeze and easy to make in bulk...
- Indian food (currys)
- Chinese food (currys, sweet and sour etc)
- Spaghetti Bolognaise
- Mexican Chilli
- Stews
Basically anything that has a sauce is ideal for freezing.
With regards to meat, almost anything will freeze and keep for a month or two... beef, pork and lamb tend to fare better than fish and chicken when frozen from fresh.
With vegetables I wouldn't bother freezing them to save... just buy fresh each time you make a meal, they will taste much better.