In a medium saucepan, bring just to a boil: 1 1/3 cups water, 2/3 cup milk and 2 tablespoons margarine. Reduce heat to medium. Slowly stir in pasta, Special Seasonings, broccoli, onion and bell pepper. Separate pasta with a fork, if needed. Return to a boil. Boil uncovered 4 to 5 minutes or until pasta is tender, stirring frequently. Add chicken; cook and stir until heated through. Sauce will be thin. Let stand 5 minutes to thicken. Top each serving with cracker crumbs.