Mash the tofu in a large bowl. Add beans, oats, onion, carrots, soy sauce, sugar, ginger, garlic and pepper flakes. Mix well then mash until the mixture reaches a uniform consisitancy and holds together. Form mixture into 6 to 8 patties. Brush both sides of the patties with oil and dust with flour. Prepare the grill by brushing the rack with oil. Cook the patties for 4 minutes on each side.
Peanut-Cilantro Sauce
Blend peanut butter and lemon juice then mix in the cilantro.
Serve the patties on toasted buns and top with the peanut-cilantro sauce and cucumber slices.
From: "The Giant Book of Tofu Cooking" by K. Lee Evans & Chris Rankin.