Another cheap quickie;
Finely chop a punnet of chestnut muchrooms, two large onions and 2 slices of bread - really chop it all fine. Mix with a pound of beef mince (preferably the cheaper higher fat sort - this is tasty not heathy). Powder an oxo cube into it, a goodly dollop of salt and black pepper - mix it all up and throw in an egg and mix some more. Squash that into patties between your palms.. with my size hands i end up with 8 goodly sized burgers slow fried. The bread will hold juices into the pattie.
For the ultimate indulgence use a perforated spoon to collect all the scraps onto one slice of bread, a spoon of the waste cooking oil onto that and another slice of bread for a burger sandwich - a perfect 3 am snack followed by some real coffee (I just perked a 50:50 mix of kenyan and columbian)