INGREDIENTS
2 cups
canned seasoned black beans, drained
1 cup
seasoned breadcrumbs
1/4 cup
grated onion
1/2 tsp
chili powder
1
large egg
Salt and freshly ground pepper
Canola oil, for the pan
4
slices Swiss cheese
1/2 cup
mayonnaise
Hot sauce
4
burger buns, toasted
Lettuce and sliced tomatoes, for topping