Pinto beans are a variety of the common bean that is commonly used in Mexican and South American cooking. Pinto beans are off-white with red speckles when raw, but turn a reddish-brown color when cooked. The beans have a creamy texture with a slightly nutty and sweet flavor. Pinto beans are a gluten-free source of carbohydrates, protein, calcium, and fiber. Pinto beans are also packed with vitamins and nutrients like vitamin C, potassium, iron, and magnesium.