This is our current go to recipe and we LOVE it. It's my friend Ashley's recipe and it's easy and delicious and we eat them like once a week. I love it because it makes four-six patties and since only 2 people in our house will eat them that means I get to freeze some for later. It all depends on how much you drain off the beans and how much oats you add.
1 15oz can black beans
1 pepper (any color but we prefer red)
1 small to medium size onion
1 to 2 cups ground oatmeal (just process regular oats in your food processor until they are finely ground)
1 tbsp olive oil
toppings: cheese, avocado, tomato, lettuce, etc
Drain some of the liquid off the black beans. Mash with beans with a potato masher. Cut the pepper and onion into chunks and process with the food processor. Drain off the excess liquid and add the onion and pepper to the beans. Stir in and add oats until the mixture is at a good consistency for forming patties, you don't want it to be too wet but you also don't want it to be crumbly. Make into thin patties and refrigerate for at least 30 minutes before cooking. Once patties are ready place olive oil in the bottom of a pan and place pan over medium heat. Cook the burgers until browned on both sides. Toast the buns, add toppings and enjoy!