Article : Budget food never tasted so good! A quick and easy week night meal or for casual weekend entertaining. The sweet potato has been classed as an "anti-diabetic" food because it helps stabilize blood sugar levels and lowers insulin resistance. This root vegetable is an excellent source of vitamin A and a very good source of vitamin C. This recipe is adapted from Australian Good Taste magazine. For more health benefits on the sweet potato, click here. Roast & Oven Bake.