here is my super cheap bean burger recipe:
1 can of beans rinsed and drained (of course you could use the same amount of dried beans, soaked and cooked too)
1 cup quick oats
1 egg (or substitute if you're vegan)
3 tbsp sauce (bbq, salsa, or anything you want)
minced onions, garlic, and spice as desired
mix it up, let it sit for 10-30 min to soak up, then form into patties and pan fry or bake
you can make lots ahead of time and freeze them too,...