1. Toss together 1/2 cup of the cheddar cheese and the cornstarch; set aside.
2. Place chicken, broccoli, onion, broth, 1/4 teaspoon each salt and pepper and the cheddar cornstarch mixture into slow cooker. Cover and cook on HIGH for 3 hours or on LOW for 4 hours.
3. Remove lid and stir remaining 1/2 cup cheddar cheese and 1/4 teaspoon each salt and pepper into slow cooker. Sprinkle crushed crackers over top and serve immediately with rice, if desired.
Servings Per Recipe: 4; Amount Per Serving: cal.(kcal): 286, Fat, total(g): 11, chol.(mg): 96, sat. fat(g): 6, carb.(g): 9, fiber(g): 2, pro.(g): 35, sodium(mg): 633, Percent Daily Values are based on a 2,000 calorie diet.