I believe this may fall under “frugal tips”. My mother was a little girl during the depression and remembers her dad making homemade baked beans (quite a treat)! Her fondest memory was what they did when there weren’t enough baked beans left to go around. They made open face baked beans sandwiches.
Place slices of bread on baking sheet
Spread each slice with baked beans
Cut a slice of bacon in half and criss cross on top of beans.
Place under broiler till bacon becomes crisp
Of course the number of sandwiches depends on how many bbeans you have.
(Even without the bacon, makes a good treat)