In a shallow dish, combine the flour with the salt and black pepper
Dredge the veal chunks in the mixture
Heat the oil in a Dutch oven over medium heat
Add the coated veal and cook until light golden about 10 minutes, stirring occasionally
Add the garlic, onion, and green peppers and cook for 5 minutes more, stirring occasionally
Add the chicken broth, tomatoes with juice, red wine, oregano, basil, red pepper, and sugar, reduce the heat, and simmer for 10 minutes more, stirring occasionally
Meanwhile, cook spaghetti until al dente, drain, and transfer to a heated serving platter
Spoon the veal mixture over the spaghetti and serve immediately