We have our own style of spaghetti bolognaise....fried mince (drained to get rid of as much fat as possible) add gravy to it just for a sauce, add half a tin of baked beans, some peas and some sweetcorn. Gently heat up and simmer for 5 minutes.
Of course you could transfer the above to individual dishes and add mash potato to the top...chuck in oven until browned slightly and then add a handful of grated cheese and grill....cottage/shepards pie in individual diahes which can be frozen if needed.