Make the Sauce: In a bowl mix tomato sauce, tomato paste, dijon mustard, molasses, brown sugar, red wine vinegar, chili powder, smoked paprika, cayenne and black pepper. Set aside.
Heat oil in a large skillet over medium high heat. Add onion,bell peppers, garlic and corn; cook until softened. Add crumbled tempeh and cook until lightly browned.
Add sauce to pan with tempeh and vegetables. Cook, uncovered, over medium low heat until sauce begins to thicken. Stir often.
Spoon onto rolls, top with a pickle and serve with cole slaw, sweet potato fries or any other tasty side... Just remember the napkins. Sloppy Joe's are, well SLOPPY!