Sloppy Tofu

Step 1
Place the block of tofu onto a plate, then place another plate on top. Set a 3 to 5 pound weight on top (a container filled with water works well). Press the tofu for 20 to 30 minutes, the drain off and discard the accumulated liquid.

Step 2
Preheat an oven to 400 degrees F (200 degrees C). Grease a baking sheet.

Step 3
Cut the block of tofu down the middle, then widthwise into 1/4 inch thick squares. Arrange on the prepared baking sheet.

Step 4
Bake in the preheated oven for 6 minutes, the turn the pieces over, and continue baking 5 minutes more. Remove the baking sheet from the oven, and allow to cool. Once the tofu is cool enough to handle, cut into 1/4 inch dice.

Step 5
Heat the vegetable oil in a large skillet over medium heat. Stir in the onion and green pepper; cook and stir until the onion has softened and turned translucent, about 5 minutes. Stir in the diced tofu, ketchup, sugar, mustard, and vinegar; season to taste with salt. Bring to a simmer over medium-high heat, then reduce the heat to medium-low, and simmer for 10 minutes. Serve on the whole wheat hamburger buns.