Pasta bake with meatballs is nice. I usually make my own using low fat minced beef, but I think Iceland are doing meatballs now (not sure what they're like). Then I make a pasta sauce with tomatoes etc and half cook pasta and mix it all together (can use cheese too if you have some from your allowance).
I often put stuff like balsamic vinegar, a chopped chili and Worcestershire sauce in the pasta sauce to pep it up a bit.