Really Simple, Really Delicious Bean Burgers
Makes 6 burgers
2 cans (15. 5-ounces each) black, white, or pinto beans or black-eyed peas, drained, liquid reserved, 1 can left whole, 1 can fork-mashed
1 cup dry breadcrumbs
2 large eggs, lightly beaten
1 teaspoon coarsely ground pepper
1/2 teaspoon garlic powder
1/2 cup mayonnaise
1 tablespoon coarse-grain mustard
1/4 cup olive or canola oil
6 good-quality hamburger buns
Toppings: green leaf lettuce, lightly salted tomato slices, red onion slices, ketchup
Mix beans, breadcrumbs, eggs, pepper, garlic in a medium bowl, adding, if necessary, a little bean liquid for mixture to hold together without being wet. Divide into 6 equal portions and flatten into 4-inch patties. Mix mayonnaise and mustard; set side.
Meanwhile, heat oil in a large (12-inch) skillet over strong medium heat.(Warm buns in a 300-degree oven, about 5 minutes.) Add patties and cook, turning only once, until a crisp brown crust forms on both sides, about 6 minutes total. Top burgers with cheese slices; cover skillet, turn heat to low, and let burgers continue to cook until cheese melts.
Spread mayonnaise mixture over warm buns and dress burgers with lettuce, tomato, and onion. Serve with ketchup.